> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apistable.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Music tasks

> One execution can return two native works.

> Operations are enabled individually by server configuration. Disabled operations return 503 without a task. Music credit deduction is currently disabled.

## One task, native track set

Omit output\_count for single-execution music models. Two native tracks, their covers and audio files belong to one result and are not billed again per file. No lyric timing or source-audio capabilities are claimed without real supplier support.

Song-producing operations return the song array in response.data.result.data.data. Entries include id, audio\_url, title and lyrics; optional artwork and stream URLs may be null. Use the returned APIstable song id as audio\_id for supported follow-up operations.

Successful song callbacks send SongResult directly, matching the full object inside query data.result. Other terminal callbacks use the common task envelope. Music credit deduction is currently disabled and charged\_credits is 0. Generated files last 14 days, temporary uploads 24 hours and task logs 30 days.


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