format, returns the parsed payload. With format=txt (raw stored text) or format=srt (SubRip conversion; synced lyrics only) the lyrics download as an attachment. The per-product lyrics_enabled setting turns the surface off (payload becomes kind:none, downloads 404).curl --location '/api/tracks//lyrics?format='{
"kind": "synced",
"lines": [
{
"startMs": 0,
"text": "string"
}
]
}