Create a singer style (Persona)

Endpoint: POST https://4zapi.com/suno/submit/persona

Create a Persona from an existing clip for reuse in task=artist_consistency and similar flows.

Request body (application/json)

root_clip_id (string, required): Source song clipId; clip_id can also be used
user_input_styles (string, required): Style description; tags can be used instead
vocal_end_s (integer, required): The ending second of the vocal segment must be greater than start
vocal_start_s (integer, required): Vocal clip starting seconds

{
  "root_clip_id": "518d910f-a6b7-43fc-9f65-c9f116f3f8a3",
  "user_input_styles": "pop,female voice",
  "vocal_end_s": 30,
  "vocal_start_s": 10
}