
A sung track: the prompt below set the arrangement and the script is what the model was given to sing. Copy the prompt, change a word and render your own.
What ACE-Step was given to sing, verbatim. Press play and it follows along.
Line positions are the rendered length divided by 3 lines. Neither model returns per-line timings and there is no forced aligner here, so the highlight follows the playhead approximately.
slow electric blues, weeping guitar bends, brushed drums, warm upright bass, smoky male lead vocal, minor key, 68 BPM
Put the vocal timbre in the prompt. 'Smoky male lead vocal' is arrangement, and ACE-Step reads the lyrics block only as words to sing.
Listed as Apache 2.0 in the catalogue and flagged unverified there. Read the model card before shipping output commercially. Soundbox itself is MIT and imposes no terms of its own on what you generate.