We develop SpinCut DJ, a free-to-download proprietary DJ application by LALAMO CORPORATION for iPhone, iPad and Mac Catalyst.
We want to add Apple Music subscription playback for users with an active subscription, similar to the integrations featured in DJ with Apple Music. This question is about the officially supported integration path, not extracting or bypassing protected audio.
Our existing engine uses app-owned PCM for two independently controlled decks, scratch/reverse playback, tempo changes, hot cues, loops, beat synchronization and independent master/headphone outputs.
We have reviewed MusicAuthorization, MusicSubscription, catalog/library requests, ApplicationMusicPlayer and SystemMusicPlayer. We understand that ordinary catalog access and protected queue playback do not establish a documented route to feed subscription audio into our custom engine, or permission to modify or synchronize MusicKit content. We have not enabled subscription-catalog DJ playback.
Apple Developer Support advised us to ask the Developer Forums about the required technical integration.
Could an Apple representative clarify:
- Is there a documented public API for two independent, simultaneous Apple Music DJ decks with scratch/reverse/tempo control?
- If a separate Apple Music DJ integration, agreement, SDK or capability is required, what is the current official application or referral process for a Japan-based developer?
- Are iOS, iPadOS and Mac Catalyst supported through the same integration, and what technical material is required for evaluation?
- What approved interfaces govern waveform/beat analysis, seeking and separate master/headphone routing?
We are not requesting recording/export, stem separation, offline file extraction or rebroadcast permission through ordinary MusicKit. Those features would remain unavailable for subscription content unless separately and expressly supported.
We can provide a product demonstration and integration brief through an appropriate private channel.
Product: https://spincutdj.com/
App Store: https://apps.apple.com/app/id6804328893
Please point us to the supported technical and onboarding path rather than an undocumented entitlement or workaround.