diff --git a/specs/components/engine/audio/SPEC.md b/specs/components/engine/audio/SPEC.md
index 3929a645..f62937f6 100644
--- a/specs/components/engine/audio/SPEC.md
+++ b/specs/components/engine/audio/SPEC.md
@@ -9,4 +9,13 @@ This component is responsible for playing audio in the browser or web view. This
 - Seeking should be enabled if possible (obviously not feasible for live streams).
 - The element should operate in broadcast mode when a group attribute is present.
 - Broadcasting the audio element allows other browser tabs to monitor its playback progress and state, volume, etc.
+- When the broadcast leader tab gets closed, another tab will take the leader role and when that happens; if the audio was playing, the audio must start playing in the tab of the new leader.
 - Consumers of this custom element must be able to tap into the code that allows for audio visualisations. Though it is not required to work simultaneously on all browser tabs.
+- The volume of the audio must be able to be set and persisted across sessions. This value depends on the used `group`.
+- The mime type must be set on the audio if provided.
+- The element must support a `initial-progress` attribute which can be used to start playing audio from that particular point.
+- Audio must be able to preloaded in the background.
+
+## Implementation specific
+
+- When using a HTML audio element, use a silent audio file data-uri as the `src` to cancel the loading of any data.
diff --git a/specs/components/engine/audio/types.d.ts b/specs/components/engine/audio/types.d.ts
index f54dd06c..65a4fb41 100644
--- a/specs/components/engine/audio/types.d.ts
+++ b/specs/components/engine/audio/types.d.ts
@@ -9,6 +9,7 @@ export type Actions = {
   seek: (
     _: { currentTime?: number; audioId: string; percentage?: number },
   ) => void;
+  state: (audioId: string) => AudioStateReadOnly | undefined;
   supply: (
     _: { audio: Audio[]; play?: { audioId: string; volume?: number } },
   ) => void;
diff --git a/src/components/engine/audio/element.js b/src/components/engine/audio/element.js
index 8bb6baef..28b1f4a4 100644
--- a/src/components/engine/audio/element.js
+++ b/src/components/engine/audio/element.js
@@ -608,7 +608,7 @@ class AudioEngineItem extends BroadcastableDiffuseElement {
       hasEnded: signal(false),
       isPlaying: signal(false),
       isPreload: signal(this.hasAttribute("preload")),
-      loadingState: signal(/** @type {LoadingState} */ ("loading")),
+      loadingState: signal(/** @type {LoadingState} */ ("initialisation")),
 
       progress: computed(() => {
         const currentTime = this.$state.currentTime.value;
@@ -653,6 +653,11 @@ class AudioEngineItem extends BroadcastableDiffuseElement {
     audio.addEventListener("timeupdate", this.timeupdateEvent);
     audio.addEventListener("waiting", this.waitingEvent);
 
+    // Transition from initialisation to loading for non-preload items
+    if (!this.hasAttribute("preload")) {
+      this.$state.loadingState.set("loading");
+    }
+
     // Setup broadcasting if part of group
     if (this.hasAttribute("group")) {
       const actions = this.broadcast(