diff --git a/.gitignore b/.gitignore
index 4609e3de5..9636ba503 100644
--- a/.gitignore
+++ b/.gitignore
@@ -199,6 +199,8 @@ __pycache__/
 /reports/jas-nzxt-fleet-use-report-2026-07-22.out
 /slab/blueberry-cabinet/build/
 /pop/nullabye/release/special-sign/special-sign-3d-spatial-graph.mp4
+/pop/nullabye/release/special-sign/special-sign-3d-spatial-overview.mp4
+/pop/nullabye/release/special-sign/special-sign-3d-score-cylinder-tour-hd.mp4
 
 # Ignore lockfile for ac-site
 /tmp/ac-site.lock
diff --git a/pop/nullabye/c/build-spatial.sh b/pop/nullabye/c/build-spatial.sh
index b06421552..3f3d5b6f5 100644
--- a/pop/nullabye/c/build-spatial.sh
+++ b/pop/nullabye/c/build-spatial.sh
@@ -1,5 +1,11 @@
 #!/bin/sh
 set -eu
 HERE="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
-cc -O3 -std=c11 -Wall -Wextra -o "$HERE/spatial-sineabye" "$HERE/spatial-sineabye.c" -lm
-echo "built $HERE/spatial-sineabye"
+if [ "${1:-}" = "--hd" ]; then
+  OUT="$HERE/spatial-sineabye-hd"
+  cc -O3 -std=c11 -Wall -Wextra -DW=1440 -DH=1440 -o "$OUT" "$HERE/spatial-sineabye.c" -lm
+else
+  OUT="$HERE/spatial-sineabye"
+  cc -O3 -std=c11 -Wall -Wextra -o "$OUT" "$HERE/spatial-sineabye.c" -lm
+fi
+echo "built $OUT"
diff --git a/pop/nullabye/c/spatial-sineabye.c b/pop/nullabye/c/spatial-sineabye.c
index e6cdf3427..a5a887cbb 100644
--- a/pop/nullabye/c/spatial-sineabye.c
+++ b/pop/nullabye/c/spatial-sineabye.c
@@ -27,8 +27,12 @@ static double tempoBpm=ROOM_BPM;
 // control-rate stepping before their states are interpolated at 48 kHz.
 #define CTRL 240
 #define FPS 24
+#ifndef W
 #define W 720
+#endif
+#ifndef H
 #define H 720
+#endif
 #define MAXE 4096
 #define NSRC 12
 #define NFRAMES ((int)(DUR*FPS))
@@ -75,6 +79,8 @@ static int voiceCount=12;
 static int duetMode=0;
 static int cosmosMode=0;
 static int cameraMode=0; // 0 global overview, 1 ship/listener POV
+static int presentationMode=0; // closer orbiting overview for room-scale playback
+static int cylinderMode=0; // high-resolution light score tube, viewed side-on
 static int acousticsView=0; // score-wide acoustic telemetry / signal-chain view
 static void resolve_render_theme(void){if(themeExplicit)return;const char*env=getenv("AC_RENDER_THEME");if(env&&*env){if(!strcmp(env,"light"))brightMode=1;else if(!strcmp(env,"dark"))brightMode=0;else if(!strcmp(env,"custom"))return;else env=NULL;if(env)return;}FILE*f=popen("defaults read -g AppleInterfaceStyle 2>/dev/null","r");if(!f){brightMode=0;return;}char b[32]={0};size_t n=fread(b,1,sizeof(b)-1,f);pclose(f);brightMode=!(n&&strstr(b,"Dark"));}
 static const StarSystem SYSTEMS[2]={
@@ -840,10 +846,20 @@ static void spectral_volume(unsigned char*p,int src,int fr,double t,V3 c,V3 cam,
   line3(p,pt[b][SPEC_RIBS-1],pt[b][0],cam,target,col,alpha*.72);
  }
 }
+// Presentation view score tubes. Upcoming events rise from below each source,
+// cross its spectral body at onset, then accelerate upward as emitted notes.
+// Ring radius is logarithmic pitch and the axial tail is authored duration.
+static void note_ring3(unsigned char*p,V3 c,double r,V3 cam,V3 target,uint32_t color,double alpha){V3 first={c.x+r,c.y,c.z},prev=first;for(int i=1;i<=12;i++){double a=TAU*i/12;V3 q={c.x+cos(a)*r,c.y+sin(a)*r,c.z};line3(p,prev,q,cam,target,color,alpha);prev=q;} }
+static void note_stream(unsigned char*p,int src,double t,V3 c,V3 cam,V3 target){double lookAhead=cylinderMode?12.0:4.2,after=cylinderMode?9.0:2.25,below=cylinderMode?14.0:3.6,above=cylinderMode?14.0:3.4,tubeRadius=cylinderMode?.18:.24;uint32_t base=S[src].color;
+ for(int k=0;k<3;k++){double a=TAU*k/3+src*.19,x=cos(a)*tubeRadius,y=sin(a)*tubeRadius;line3(p,(V3){c.x+x,c.y+y,c.z-below},(V3){c.x+x,c.y+y,c.z+above},cam,target,base,.075);}
+ for(int j=0;j<NE;j++){Event*e=&E[j];if(e->src!=src||e->g<.004)continue;double dt=e->t-t,flow,fade;if(dt>0&&dt<=lookAhead){flow=dt/lookAhead;flow=flow*flow*(3-2*flow);flow=-below*flow;fade=.22+.62*(1-dt/lookAhead);}else if(dt<=0&&dt>=-after){double u=-dt/after;flow=above*(1-pow(1-u,3));fade=.78*(1-u)*(1-u);}else continue;
+  double f=sqrt(fmax(45,e->f0)*fmax(45,e->f1)),pitch=fmax(0,fmin(1,log(f/45.0)/log(14000.0/45.0))),r=.10+.18*pitch,tail=.10+.30*fmin(2.0,e->dur),amp=fmin(1.0,.24+1.55*sqrt(fabs(e->g)));uint32_t col=shade_color(base,.68+.48*pitch);V3 q={c.x,c.y,c.z+flow};note_ring3(p,q,r,cam,target,col,fade*amp);line3(p,(V3){q.x,q.y,q.z-tail},q,cam,target,col,fade*amp*.82);P2 qp=project(q,cam,target);if(qp.ok){int rr=dt<=0?3:2;glow(p,qp.x,qp.y,rr*3,col,.05+fade*amp*.09);dot(p,qp.x,qp.y,rr,col);}if(fabs(dt)<.055){P2 cp=project(c,cam,target);if(cp.ok)glow(p,cp.x,cp.y,20,col,.10*amp);}
+ }
+}
 // Acoustic shells are emitted from each body's historical world position.  A
 // shell exists only when that source's measured post-HRTF output existed, so
 // the waves remain signal visualization rather than decorative animation.
-static void sound_shells(unsigned char*p,int src,int fr,V3 cam,V3 target){for(int q=1;q<=6;q++){int pf=fr-q*5;if(pf<0)continue;double ml,mr;source_meter(pf,src,&ml,&mr);double e=hypot(ml,mr);if(e<.00008)continue;double age=(fr-pf)/(double)FPS,et=pf/(double)FPS,fade=(1-age/1.35);fade*=fade;Source so=source_at(src,et);V3 c={so.x,so.y,so.z};double r=.16+age*2.35,a=(.025+fmin(.20,e*15))*fade;uint32_t col=shade_color(S[src].color,.72+q*.055);const float*wave=&sourceWave[(pf*NSRC+src)*WAVE_POINTS];double peak=0;for(int i=0;i<WAVE_POINTS;i++)peak=fmax(peak,fabs(wave[i]));wave_ring3plane(p,c,r,0,wave,peak,cam,target,col,a);wave_ring3plane(p,c,r,1,wave,peak,cam,target,col,a*.78);wave_ring3plane(p,c,r,2,wave,peak,cam,target,col,a*.62);}}
+static void sound_shells(unsigned char*p,int src,int fr,V3 cam,V3 target,double spread,double cx,double cy){for(int q=1;q<=6;q++){int pf=fr-q*5;if(pf<0)continue;double ml,mr;source_meter(pf,src,&ml,&mr);double e=hypot(ml,mr);if(e<.00008)continue;double age=(fr-pf)/(double)FPS,et=pf/(double)FPS,fade=(1-age/1.35);fade*=fade;Source so=source_at(src,et);V3 c={cx+(so.x-cx)*spread,cy+(so.y-cy)*spread,so.z};double r=.16+age*2.35,a=(.025+fmin(.20,e*15))*fade;uint32_t col=shade_color(S[src].color,.72+q*.055);const float*wave=&sourceWave[(pf*NSRC+src)*WAVE_POINTS];double peak=0;for(int i=0;i<WAVE_POINTS;i++)peak=fmax(peak,fabs(wave[i]));wave_ring3plane(p,c,r,0,wave,peak,cam,target,col,a);wave_ring3plane(p,c,r,1,wave,peak,cam,target,col,a*.78);wave_ring3plane(p,c,r,2,wave,peak,cam,target,col,a*.62);}}
 static uint32_t stereo_color(double pan){double u=(pan+1)*.5;int lr=0x4e,lg=0xcd,lb=0xc4,rr=0xf8,rg=0xa5,rb=0xc2,r=(int)(lr+(rr-lr)*u),g=(int)(lg+(rg-lg)*u),b=(int)(lb+(rb-lb)*u);return(uint32_t)(r<<16|g<<8|b);}
 // The canopy glass is the final stereo waveform, decoded from the exact master
 // that video() will mux.  Perspective rows hold the preceding 55 ms; left to
@@ -991,39 +1007,40 @@ static void globe_frame(unsigned char*p,int fr,double t,Listener l){
 static void video(const char*wavp,const char*outp,double videoStart,double videoDuration){char cmd[2048];size_t ol=strlen(outp);int lossless=ol>=4&&!strcmp(outp+ol-4,".mov");const char*clean=globeMode?"-af 'highpass=f=30,equalizer=f=7600:t=q:w=.75:g=-4,lowpass=f=11800,alimiter=limit=.90:attack=6:release=110,volume=.88'":"",*pixels=(globeMode&&!acousticsView)?"-vf 'scale=240:240:flags=neighbor,scale=720:720:flags=neighbor'":"";if(lossless)
  snprintf(cmd,sizeof cmd,"ffmpeg -hide_banner -y -loglevel error -f rawvideo -pixel_format rgb24 -video_size %dx%d -framerate %d -i - -i '%s' -c:v libx265 -preset medium -x265-params lossless=1:log-level=error -pix_fmt yuv444p -tag:v hvc1 %s -c:a pcm_s24le -ar 48000 -shortest '%s'",W,H,FPS,wavp,clean,outp);
  else snprintf(cmd,sizeof cmd,"ffmpeg -hide_banner -y -loglevel error -f rawvideo -pixel_format rgb24 -video_size %dx%d -framerate %d -i - -i '%s' %s -c:v libx264 -preset slow -pix_fmt yuv420p -crf 14 %s -c:a aac -b:a 320k -shortest '%s'",W,H,FPS,wavp,pixels,clean,outp);FILE*ff=popen(cmd,"w");if(!ff)return;unsigned char*p=malloc(W*H*3);
- int videoFrames=(int)floor(videoDuration*FPS+.5);for(int outFr=0;outFr<videoFrames;outFr++){double t=videoStart+outFr/(double)FPS;int fr=(int)floor(t*FPS);for(int y=0;y<H;y++){unsigned char v=brightMode?(unsigned char)(250-15*y/(double)H):(unsigned char)(24-10*y/(double)H);for(int x=0;x<W;x++){int o=(y*W+x)*3;p[o]=v;p[o+1]=(unsigned char)fmax(0,v-(brightMode?3:1));p[o+2]=(unsigned char)fmin(255,v+(brightMode?0:2));}}int li=(int)(t*CTRL);Listener l=L[li];
+ int videoFrames=(int)floor(videoDuration*FPS+.5);for(int outFr=0;outFr<videoFrames;outFr++){double t=videoStart+outFr/(double)FPS;int fr=(int)floor(t*FPS);for(int y=0;y<H;y++){unsigned char v=brightMode?(unsigned char)(250-15*y/(double)H):(unsigned char)(24-10*y/(double)H);for(int x=0;x<W;x++){int o=(y*W+x)*3;if(cylinderMode){p[o]=(unsigned char)(247-5*y/(double)H);p[o+1]=(unsigned char)(242-3*y/(double)H);p[o+2]=(unsigned char)(249-2*y/(double)H);}else{p[o]=v;p[o+1]=(unsigned char)fmax(0,v-(brightMode?3:1));p[o+2]=(unsigned char)fmin(255,v+(brightMode?0:2));}}}int li=(int)(t*CTRL);Listener l=L[li];
   if(globeMode){globe_frame(p,fr,t,l);fwrite(p,1,W*H*3,ff);continue;}
+  double cylinderProgress=cylinderMode?fmax(0,fmin(1,(t-videoStart)/fmax(.001,videoDuration))):0;
+  projectionRoll=cylinderMode?M_PI*.5+.26*sin(TAU*cylinderProgress*3):0;
   // Camera begins among the sources, orbits with the listener, then after 78 s
   // retreats far beyond the room until the ensemble is a small constellation.
   int ts=tour_source(t),tn=TOUR[(ts==TOUR[11])?0:((int)(t/9.0)+1)%12];double phase=fmod(t,9.0)/9.0,lookMix=phase<.78?0:(phase-.78)/.22;lookMix=lookMix*lookMix*(3-2*lookMix);Source la=source_at(ts,t),lb=source_at(tn,t);
   // First-person radio receiver at ear height. Smooth focus handoffs avoid cuts;
   // parallax and changing radii now reveal the listener's physical travel.
-  V3 cam,target;if(cameraMode){cam=(V3){l.x,l.y,1.62};target=(V3){la.x+(lb.x-la.x)*lookMix,la.y+(lb.y-la.y)*lookMix,la.z+(lb.z-la.z)*lookMix};}
-  else{double cx=l.x,cy=l.y,cz=1.6;for(int s=0;s<NSRC;s++){Source q=source_at(s,t);cx+=q.x;cy+=q.y;cz+=q.z;}cx/=NSRC+1;cy/=NSRC+1;cz/=NSRC+1;double orbitTime=ending_motion_time(t),orbit=-.72+.16*sin(orbitTime/19.0);cam=(V3){cx+19*cos(orbit),cy+19*sin(orbit),cz+12.5};target=(V3){cx,cy,cz*.55};}
+  V3 cam,target;double visualCx=0,visualCy=0,visualSpread=1;if(cameraMode){cam=(V3){l.x,l.y,1.62};target=(V3){la.x+(lb.x-la.x)*lookMix,la.y+(lb.y-la.y)*lookMix,la.z+(lb.z-la.z)*lookMix};}
+  else{double cx=l.x,cy=l.y,cz=1.6;for(int s=0;s<NSRC;s++){Source q=source_at(s,t);cx+=q.x;cy+=q.y;cz+=q.z;}cx/=NSRC+1;cy/=NSRC+1;cz/=NSRC+1;visualCx=cx;visualCy=cy;if(presentationMode){double extent=0;for(int s=0;s<NSRC;s++){Source q=source_at(s,t);extent=fmax(extent,hypot(q.x-cx,q.y-cy));}visualSpread=fmax(1,fmin(3.4,4.6/fmax(.01,extent)));double displayExtent=extent*visualSpread,elapsed=t-videoStart,u,orbit,zoff;if(cylinderMode){double progress=cylinderProgress,elevation=.08+1.18*pow(sin(TAU*progress),2),baseDistance=fmax(9.5,fmin(15.5,displayExtent*1.55+4.2)),distance=baseDistance+6.2*sin(elevation);orbit=-.78+TAU*(1.65*progress+.055*sin(TAU*progress*4));double radius=distance*cos(elevation);zoff=distance*sin(elevation);cam=(V3){cx+radius*cos(orbit),cy+radius*sin(orbit),cz+zoff};target=(V3){cx,cy,cz};}else{if(elapsed<22){u=smooth01(elapsed/22);orbit=-.95+.40*u;zoff=6.6-1.2*u;}else if(elapsed<38){u=smooth01((elapsed-22)/16);orbit=-.55+.85*u;zoff=5.4+5.4*u;}else if(elapsed<56){u=smooth01((elapsed-38)/18);orbit=.30+1.10*u;zoff=10.8-1.3*u;}else if(elapsed<76){u=smooth01((elapsed-56)/20);orbit=1.40+.85*u;zoff=9.5-3.7*u;}else{double side=l.heading+M_PI*.5;while(side-2.25>M_PI)side-=TAU;while(side-2.25<-M_PI)side+=TAU;u=smooth01(fmin(1,(elapsed-76)/10));orbit=2.25+(side-2.25)*u;zoff=5.8-u;}double radius=fmax(6.5,fmin(13.2,displayExtent*1.45+2.4));cam=(V3){cx+radius*cos(orbit),cy+radius*sin(orbit),cz+zoff};target=(V3){cx,cy,cz};}}else{double orbitTime=ending_motion_time(t),orbit=-.72+.16*sin(orbitTime/19.0);cam=(V3){cx+19*cos(orbit),cy+19*sin(orbit),cz+12.5};target=(V3){cx,cy,cz*.55};}}
   // Faceted receiver-world horizon. Large triangles scroll gently with travel,
   // providing scale without pretending to be another sound source.
   if(cameraMode){int horizon=brightMode?300:330,shift=(int)(l.x*9+l.y*5);for(int q=-1;q<10;q++){int x0=q*92-(shift%92),x1=x0+46,x2=x0+92,y1=horizon-28-(int)(38*(.5+.5*sin(q*2.31+l.heading)));uint32_t c1=brightMode?(q&1?0xc9d2cf:0xbcc8c6):(q&1?0x20282b:0x182124);tri2(p,x0,horizon,x1,y1,x2,horizon,c1,.82);tri2(p,x0,horizon,x2,horizon,x2,H-205,brightMode?0xd9ded8:0x111719,.52);}line2(p,0,horizon,W,horizon,brightMode?0x7f9292:0x52656a,.55);}
-  // Perspective floor grid makes depth and the final pull-away legible.
-  for(int q=-8;q<=8;q++){line3(p,(V3){q,-8,0},(V3){q,8,0},cam,target,brightMode?0x9eafb2:0x536069,brightMode?.42:.28);line3(p,(V3){-8,q,0},(V3){8,q,0},cam,target,brightMode?0x9eafb2:0x536069,brightMode?.42:.28);}
+  // The ordinary overview retains its spatial scaffolding. Presentation mode
+  // lets the authored bodies, score tubes, and measured waves carry the view.
+  if(!presentationMode)for(int q=-8;q<=8;q++){line3(p,(V3){q,-8,0},(V3){q,8,0},cam,target,brightMode?0x9eafb2:0x536069,brightMode?.42:.28);line3(p,(V3){-8,q,0},(V3){8,q,0},cam,target,brightMode?0x9eafb2:0x536069,brightMode?.42:.28);}
   // The same propagation world the radio hears: brick occluder and wind-raked
   // rain streaks. They are geometry/fields, never decorative AI additions.
-  for(int q=0;q<=5;q++)line3(p,(V3){1.2,-3,q*.48},(V3){1.2,2.5,q*.48},cam,target,0x806f68,.62);
-  for(int q=0;q<=6;q++)line3(p,(V3){1.2,-3+q*.92,0},(V3){1.2,-3+q*.92,2.4},cam,target,0x806f68,.62);
-  for(int q=0;q<42;q++){double rx=-8+fmod(q*3.71+t*.7,16),ry=-8+fmod(q*6.13+t*.43,16),rz=.3+fmod(q*1.77-t*1.9,5.5);line3(p,(V3){rx,ry,rz},(V3){rx-.12,ry-.08,rz-.38},cam,target,0x8faab5,.18);}
+  if(!presentationMode){for(int q=0;q<=5;q++)line3(p,(V3){1.2,-3,q*.48},(V3){1.2,2.5,q*.48},cam,target,0x806f68,.62);for(int q=0;q<=6;q++)line3(p,(V3){1.2,-3+q*.92,0},(V3){1.2,-3+q*.92,2.4},cam,target,0x806f68,.62);for(int q=0;q<42;q++){double rx=-8+fmod(q*3.71+t*.7,16),ry=-8+fmod(q*6.13+t*.43,16),rz=.3+fmod(q*1.77-t*1.9,5.5);line3(p,(V3){rx,ry,rz},(V3){rx-.12,ry-.08,rz-.38},cam,target,0x8faab5,.18);}}
   V3 lv={l.x,l.y,1.6};
   // Six-second fading breadcrumb: the path that the two follower voices chase.
-  for(int q=1;q<=36;q++){int ia=li-(q-1)*CTRL/6,ib=li-q*CTRL/6;if(ib<0)break;V3 a={L[ia].x,L[ia].y,1.58},b={L[ib].x,L[ib].y,1.58};line3(p,a,b,cam,target,0xff6b9d,.42*(1-q/37.0));}
-  for(int s=0;s<NSRC;s++){double ml,mr;source_meter(fr,s,&ml,&mr);double heard=hypot(ml,mr);Source so=source_at(s,t);V3 sv={so.x,so.y,so.z};P2 sp=project(sv,cam,target);double gl,gr,dd;gains(s,t,&gl,&gr,&dd);
+  if(!cylinderMode)for(int q=1;q<=36;q++){int ia=li-(q-1)*CTRL/6,ib=li-q*CTRL/6;if(ib<0)break;V3 a={L[ia].x,L[ia].y,1.58},b={L[ib].x,L[ib].y,1.58};line3(p,a,b,cam,target,0xff6b9d,.42*(1-q/37.0));}
+  for(int s=0;s<NSRC;s++){double ml,mr;source_meter(fr,s,&ml,&mr);double heard=hypot(ml,mr);Source so=source_at(s,t);if(presentationMode){so.x=visualCx+(so.x-visualCx)*visualSpread;so.y=visualCy+(so.y-visualCy)*visualSpread;}V3 sv={so.x,so.y,so.z};P2 sp=project(sv,cam,target);double gl,gr,dd;gains(s,t,&gl,&gr,&dd);
    // Grey is physical distance. Spectral volume and emitted-shell intensity
    // come from this body's score spectrum and measured post-HRTF energy.
-   line3(p,lv,sv,cam,target,0x778087,.18);circle3(p,(V3){so.x,so.y,.025},1.35,cam,target,S[s].color,s==ts?.34:.08);if(s==ts&&t<104)circle3(p,(V3){so.x,so.y,.03},4.05,cam,target,S[s].color,.2);
-   sound_shells(p,s,fr,cam,target);
+   if(!presentationMode)line3(p,lv,sv,cam,target,0x778087,.18);if(presentationMode)note_stream(p,s,t,sv,cam,target);if(!presentationMode){circle3(p,(V3){so.x,so.y,.025},1.35,cam,target,S[s].color,s==ts?.34:.08);if(s==ts&&t<104)circle3(p,(V3){so.x,so.y,.03},4.05,cam,target,S[s].color,.2);}
+   sound_shells(p,s,fr,cam,target,visualSpread,visualCx,visualCy);
    // Phosphor streak = true recent emitter trajectory. Distant transmissions
    // persist longer, making their longer radio flight time visible.
-   {double trail=.18+fmin(.9,dd/12);V3 prev=sv;for(int q=1;q<=16;q++){double pt=fmax(0,t-q*trail/16),fade=(1-q/17.0)*(.08+fmin(.55,heard*18));Source old=source_at(s,pt);V3 ov={old.x,old.y,old.z};line3(p,prev,ov,cam,target,S[s].color,fade);prev=ov;}}
-   if(heard>.00005)line3(p,lv,sv,cam,target,S[s].color,.03+fmin(.84,heard*28));
+   {double trail=.18+fmin(.9,dd/12);V3 prev=sv;for(int q=1;q<=16;q++){double pt=fmax(0,t-q*trail/16),fade=(1-q/17.0)*(.08+fmin(.55,heard*18));Source old=source_at(s,pt);V3 ov={visualCx+(old.x-visualCx)*visualSpread,visualCy+(old.y-visualCy)*visualSpread,old.z};line3(p,prev,ov,cam,target,S[s].color,fade);prev=ov;}}
+   if(!presentationMode&&heard>.00005)line3(p,lv,sv,cam,target,S[s].color,.03+fmin(.84,heard*28));
    if(sp.ok){double sc=W/360.0;int core=(int)fmax(3,fmin(11,52*sc/sp.z));int halo=(int)fmax(core*2,fmin(62,(4+heard*1500)*sc*10/sp.z));P2 sh=project((V3){so.x,so.y,.02},cam,target);if(sh.ok)glow(p,sh.x,sh.y,(int)fmax(5,halo*.8),S[s].color,.06+fmin(.4,heard*14));if(s==ts&&t<104)glow(p,sp.x,sp.y,halo+18,0xffffff,.16);glow(p,sp.x,sp.y,halo,S[s].color,.10+fmin(.36,heard*10));}
-   spectral_volume(p,s,fr,t,sv,cam,target,s==ts);if(!cameraMode&&sp.ok)text3(p,sp.x+9,sp.y-7,S[s].name,1,brightMode?0x33484c:0xd5e5e2);
+   spectral_volume(p,s,fr,t,sv,cam,target,s==ts);if(!cameraMode&&!presentationMode&&sp.ok)text3(p,sp.x+9,sp.y-7,S[s].name,1,brightMode?0x33484c:0xd5e5e2);
   }
   if(cameraMode){
   stereo_windshield(p,t);
@@ -1043,12 +1060,12 @@ static void video(const char*wavp,const char*outp,double videoStart,double video
   line2(p,rcx,rcy-7,rcx-6,rcy+6,0xf6c915,.95);line2(p,rcx-6,rcy+6,rcx+6,rcy+6,0xf6c915,.95);line2(p,rcx+6,rcy+6,rcx,rcy-7,0xf6c915,.95);
   double sumL=0,sumR=0;for(int s=0;s<NSRC;s++){double ml,mr;source_meter(fr,s,&ml,&mr);sumL+=ml;sumR+=mr;Source so=source_at(s,t);double dx=so.x-l.x,dy=so.y-l.y,rx=dx*cos(l.heading)+dy*sin(l.heading),ry=-dx*sin(l.heading)+dy*cos(l.heading),scale=11.0,rr=hypot(rx,ry);if(rr>10.5){rx*=10.5/rr;ry*=10.5/rr;}int bx=rcx+(int)(ry*scale),base=rcy-(int)(rx*scale*.5),by=base-(int)((so.z-1.6)*10),weak=hypot(ml,mr)<.0015;double vis=weak?(.16+.24*(sin(t*31+s*7)>0)):.9;line2(p,bx,base,bx,by,S[s].color,vis*.7);if(s==ts)glow(p,bx,by,12,0xffffff,.28);dot(p,bx,by,s==ts?4:3,S[s].color);}
   int lm=(int)fmin(110,sumL*850),rm=(int)fmin(110,sumR*850);fill2(p,70,H-55,70+lm,H-45,0x4ecdc4,.9);fill2(p,W-70-rm,H-55,W-70,H-45,0xf8a5c2,.9);
-  }else{P2 lp=project(lv,cam,target),hd=project((V3){l.x+cos(l.heading)*.75,l.y+sin(l.heading)*.75,1.6},cam,target);if(lp.ok){glow(p,lp.x,lp.y,26,0xffd54f,.28);dot(p,lp.x,lp.y,7,0xffffff);if(hd.ok)line2(p,lp.x,lp.y,hd.x,hd.y,0xff6b9d,.9);}text3(p,24,22,"GLOBAL ARRANGEMENT",2,brightMode?0x324a4d:0xe2efed);text3(p,24,42,"SOUND BODIES - GRAVITY - WAVES",1,brightMode?0x536e73:0x75aeb2);}
+  }else{P2 lp=project(lv,cam,target),hd=project((V3){l.x+cos(l.heading)*.75,l.y+sin(l.heading)*.75,1.6},cam,target);if(lp.ok){glow(p,lp.x,lp.y,presentationMode?38:26,0xffd54f,.28);dot(p,lp.x,lp.y,presentationMode?10:7,cylinderMode?0x37474a:0xffffff);if(hd.ok)line2(p,lp.x,lp.y,hd.x,hd.y,0xff6b9d,.9);if(presentationMode&&!cylinderMode)text3(p,lp.x+14,lp.y-9,"LISTENER",2,brightMode?0x324a4d:0xffffff);}if(!presentationMode){text3(p,24,22,"GLOBAL ARRANGEMENT",2,brightMode?0x324a4d:0xe2efed);text3(p,24,42,"SOUND BODIES - GRAVITY - WAVES",1,brightMode?0x536e73:0x75aeb2);}}
   fwrite(p,1,W*H*3,ff);
  }
  free(p);pclose(ff);
 }
-  int main(int argc,char**argv){const char*w="../out/spatial-sineabye.wav",*v="../out/spatial-sineabye.mp4",*videoAudio=NULL,*mp3=NULL,*ptStill=NULL,*sceneOut=NULL,*scoreOut=NULL;double ptTime=32,videoStart=0,videoDuration=DUR;int ptSpp=32,sceneFrames=0,tempoExplicit=0,scoreOnly=0;for(int i=1;i<argc;i++){if(!strcmp(argv[i],"--wav")&&i+1<argc)w=argv[++i];else if(!strcmp(argv[i],"--video")&&i+1<argc)v=argv[++i];else if(!strcmp(argv[i],"--video-audio")&&i+1<argc)videoAudio=argv[++i];else if(!strcmp(argv[i],"--video-start")&&i+1<argc)videoStart=atof(argv[++i]);else if(!strcmp(argv[i],"--video-duration")&&i+1<argc)videoDuration=atof(argv[++i]);else if(!strcmp(argv[i],"--mp3")&&i+1<argc)mp3=argv[++i];else if(!strcmp(argv[i],"--spatial-wet")&&i+1<argc)spatialWet=fmax(0,fmin(1,atof(argv[++i])));else if(!strcmp(argv[i],"--noise-level")&&i+1<argc)noiseLevel=fmax(.05,fmin(1,atof(argv[++i])));else if(!strcmp(argv[i],"--bpm")&&i+1<argc){tempoBpm=fmax(30,fmin(240,atof(argv[++i])));tempoExplicit=1;}else if(!strcmp(argv[i],"--bright")){brightMode=1;themeExplicit=1;}else if(!strcmp(argv[i],"--dark")){brightMode=0;themeExplicit=1;}else if(!strcmp(argv[i],"--theme")&&i+1<argc){const char*th=argv[++i];if(!strcmp(th,"light"))brightMode=1;else if(!strcmp(th,"dark"))brightMode=0;themeExplicit=strcmp(th,"auto")!=0;}else if(!strcmp(argv[i],"--globe"))globeMode=1;else if(!strcmp(argv[i],"--lattice-duet")){globeMode=1;duetMode=1;voiceCount=4;}else if(!strcmp(argv[i],"--cosmos")){globeMode=1;cosmosMode=1;voiceCount=12;}else if(!strcmp(argv[i],"--camera")&&i+1<argc){cameraMode=!strcmp(argv[++i],"ship");}else if(!strcmp(argv[i],"--voices")&&i+1<argc)voiceCount=atoi(argv[++i]);else if(!strcmp(argv[i],"--pathtrace-still")&&i+1<argc)ptStill=argv[++i];else if(!strcmp(argv[i],"--pt-time")&&i+1<argc)ptTime=atof(argv[++i]);else if(!strcmp(argv[i],"--pt-spp")&&i+1<argc)ptSpp=atoi(argv[++i]);else if(!strcmp(argv[i],"--scene-data")&&i+1<argc)sceneOut=argv[++i];else if(!strcmp(argv[i],"--scene-frames")&&i+1<argc)sceneFrames=atoi(argv[++i]);else if(!strcmp(argv[i],"--score-data")&&i+1<argc)scoreOut=argv[++i];else if(!strcmp(argv[i],"--score-only"))scoreOnly=1;}if(!tempoExplicit)tempoBpm=cosmosMode?COSMOS_BPM:ROOM_BPM;if(sceneFrames<=0)sceneFrames=NFRAMES;resolve_render_theme();videoStart=fmax(0,fmin(DUR,videoStart));videoDuration=fmax(0,fmin(DUR-videoStart,videoDuration));
+  int main(int argc,char**argv){const char*w="../out/spatial-sineabye.wav",*v="../out/spatial-sineabye.mp4",*videoAudio=NULL,*mp3=NULL,*ptStill=NULL,*sceneOut=NULL,*scoreOut=NULL;double ptTime=32,videoStart=0,videoDuration=DUR;int ptSpp=32,sceneFrames=0,tempoExplicit=0,scoreOnly=0;for(int i=1;i<argc;i++){if(!strcmp(argv[i],"--wav")&&i+1<argc)w=argv[++i];else if(!strcmp(argv[i],"--video")&&i+1<argc)v=argv[++i];else if(!strcmp(argv[i],"--video-audio")&&i+1<argc)videoAudio=argv[++i];else if(!strcmp(argv[i],"--video-start")&&i+1<argc)videoStart=atof(argv[++i]);else if(!strcmp(argv[i],"--video-duration")&&i+1<argc)videoDuration=atof(argv[++i]);else if(!strcmp(argv[i],"--mp3")&&i+1<argc)mp3=argv[++i];else if(!strcmp(argv[i],"--spatial-wet")&&i+1<argc)spatialWet=fmax(0,fmin(1,atof(argv[++i])));else if(!strcmp(argv[i],"--noise-level")&&i+1<argc)noiseLevel=fmax(.05,fmin(1,atof(argv[++i])));else if(!strcmp(argv[i],"--bpm")&&i+1<argc){tempoBpm=fmax(30,fmin(240,atof(argv[++i])));tempoExplicit=1;}else if(!strcmp(argv[i],"--bright")){brightMode=1;themeExplicit=1;}else if(!strcmp(argv[i],"--dark")){brightMode=0;themeExplicit=1;}else if(!strcmp(argv[i],"--theme")&&i+1<argc){const char*th=argv[++i];if(!strcmp(th,"light"))brightMode=1;else if(!strcmp(th,"dark"))brightMode=0;themeExplicit=strcmp(th,"auto")!=0;}else if(!strcmp(argv[i],"--globe"))globeMode=1;else if(!strcmp(argv[i],"--lattice-duet")){globeMode=1;duetMode=1;voiceCount=4;}else if(!strcmp(argv[i],"--cosmos")){globeMode=1;cosmosMode=1;voiceCount=12;}else if(!strcmp(argv[i],"--camera")&&i+1<argc){const char*mode=argv[++i];cameraMode=!strcmp(mode,"ship");presentationMode=!strcmp(mode,"presentation")||!strcmp(mode,"cylinder");cylinderMode=!strcmp(mode,"cylinder");}else if(!strcmp(argv[i],"--voices")&&i+1<argc)voiceCount=atoi(argv[++i]);else if(!strcmp(argv[i],"--pathtrace-still")&&i+1<argc)ptStill=argv[++i];else if(!strcmp(argv[i],"--pt-time")&&i+1<argc)ptTime=atof(argv[++i]);else if(!strcmp(argv[i],"--pt-spp")&&i+1<argc)ptSpp=atoi(argv[++i]);else if(!strcmp(argv[i],"--scene-data")&&i+1<argc)sceneOut=argv[++i];else if(!strcmp(argv[i],"--scene-frames")&&i+1<argc)sceneFrames=atoi(argv[++i]);else if(!strcmp(argv[i],"--score-data")&&i+1<argc)scoreOut=argv[++i];else if(!strcmp(argv[i],"--score-only"))scoreOnly=1;}if(!tempoExplicit)tempoBpm=cosmosMode?COSMOS_BPM:ROOM_BPM;if(sceneFrames<=0)sceneFrames=NFRAMES;resolve_render_theme();videoStart=fmax(0,fmin(DUR,videoStart));videoDuration=fmax(0,fmin(DUR-videoStart,videoDuration));
  for(int i=1;i+1<argc;i++){if(!strcmp(argv[i],"--visual"))acousticsView=!strcmp(argv[i+1],"acoustics");else if(!strcmp(argv[i],"--antenna-am"))antennaDepth=fmax(0,fmin(.18,atof(argv[i+1])));}
  score();filter_score();if(scoreOut){if(!export_score_json(scoreOut)){fprintf(stderr,"score export failed\n");return 1;}fprintf(stderr,"✓ %s · %d authored events\n",scoreOut,NE);}if(scoreOnly)return scoreOut?0:1;simulate();if(ptStill){globeMode=1;if(!pathtrace_still(ptStill,fmax(0,fmin(DUR,ptTime)),fmax(1,ptSpp))){fprintf(stderr,"pathtrace write failed\n");return 1;}fprintf(stderr,"✓ %s · path traced · %d spp\n",ptStill,ptSpp);return 0;}render();if(sceneOut&&!export_scene(sceneOut,fmax(1,fmin(NFRAMES,sceneFrames)))){fprintf(stderr,"scene export failed\n");return 1;}if(!wav(w)){fprintf(stderr,"write failed\n");return 1;}fprintf(stderr,"✓ %s · %.1fs · %d sound bodies/events · %d voices · spatial wet %.0f%%\n",w,DUR,NE,voiceCount,spatialWet*100);
  if(mp3){char cmd[4096];snprintf(cmd,sizeof cmd,"ffmpeg -hide_banner -y -loglevel error -i '%s' -af 'highpass=f=28,equalizer=f=72:t=q:w=.8:g=1.2,equalizer=f=7200:t=q:w=.9:g=-1,lowpass=f=15800,alimiter=limit=.90:attack=6:release=100,volume=.84' -c:a libmp3lame -q:a 2 '%s'",w,mp3);if(system(cmd)!=0)return 1;}
diff --git a/pop/nullabye/release/special-sign/README.md b/pop/nullabye/release/special-sign/README.md
index 19ed356e6..c46c52413 100644
--- a/pop/nullabye/release/special-sign/README.md
+++ b/pop/nullabye/release/special-sign/README.md
@@ -23,6 +23,14 @@ Locked master package for the release-length spatial-sine work.
 - `special-sign-3d-spatial-graph.mp4` — synchronized first-person 3D graph of
   the twelve physical bodies, listener path, emitted waves, and mastered
   stereo receiver plane.
+- [`special-sign-3d-spatial-overview.mp4`](https://assets.aesthetic.computer/pop/nullabye/special-sign/special-sign-3d-spatial-overview.mp4)
+  — synchronized external presentation view. Upcoming events rise from below
+  each voice, cross its spectral body at onset, and exit above while smooth
+  viewpoints separate the spatial field.
+- [`special-sign-3d-score-cylinder-tour-hd.mp4`](https://assets.aesthetic.computer/pop/nullabye/special-sign/special-sign-3d-score-cylinder-tour-hd.mp4)
+  — sharp 1440-square pastel score with uncapped note lanes and side,
+  three-quarter, high, near-axis, opposite-side, and rolled-return views joined
+  into one continuous tour.
 - `special-sign-circular-score.mp4` — the radial cover rotating beneath a
   fixed receiver needle, with the final motion-dependent wet field.
 - `special-sign.automation.json` — sample-timeline receipt for the final
@@ -63,6 +71,8 @@ cancels in mono before the final linear loudness trim.
 - MP3: 48 kHz stereo, 320 kbps, cover and release tags embedded
 - Graphic-score MP4: 2160×2160 H.264 + 48 kHz stereo AAC, exactly 1:41.375
 - 3D spatial graph: 720×720 H.264 + 48 kHz stereo AAC, exactly 1:41.375
+- 3D spatial overview: 720×720 H.264 + 48 kHz stereo AAC, exactly 1:41.375
+- HD score-cylinder tour: 1440×1440 H.264 + 48 kHz stereo AAC, exactly 1:41.375
 - Encoded frames inspected at opening, super-spin, and final run-down in both
   visual systems