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Unified Playback State Across Lock Screen, Mini Player, and Reels

2026.03.26Technical Log#playback#product-ui#content

Playback state distributed across the lock screen remote control, mini player, and reels has been consolidated under a single source of truth, ensuring consistent behavior across all control surfaces.

During playback, users interact with the same track through multiple UI surfaces: the lock screen remote control, the in-app mini player, and reels. When each surface maintains independent state, actions on one surface fail to propagate to others, directly degrading playback reliability. Resolving this inconsistency was the primary objective of this update.

The lock screen remote control, in-app controls, and reels playback have been rebuilt on a shared state source. Regardless of which surface initiates a control action, all surfaces read from the same state and return consistent results. The track loading and audio session initialization sequence was also revised to reduce the gap between playback start and UI reflection.

In addition, reverb and effects parameters were tuned, and the splash and onboarding screens were updated. The result is guaranteed playback state consistency across all control surfaces.