duet-webmcp.vercel.app
Compose music together with AI, directly in your browser.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 4 · Act 14 · Transact 0 · Score: Not yet scored
Tool inspector
generate_line
Use this when the person asks Duet to write a bass, counter melody, or pad over existing chords. Generation follows deterministic chord-tone and voice-leading rules.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
role |
string | yes | — |
startBar |
integer | yes | — |
endBar |
integer | yes | — |
style |
string | no | — |
mode |
string | no | draft (default): show the result as a ghost preview the person accepts or discards on the page; apply: write immediately because the person explicitly asked for that. |
expectedStateVersion |
integer | no | Optional stateVersion you last read; the call is rejected if the person changed the page since. |
Raw JSON schema
{
"type": "object",
"properties": {
"role": {
"type": "string",
"enum": [
"bass",
"counter_melody",
"pad"
]
},
"startBar": {
"type": "integer",
"minimum": 0,
"maximum": 15
},
"endBar": {
"type": "integer",
"minimum": 1,
"maximum": 16
},
"style": {
"type": "string",
"enum": [
"simple",
"flowing",
"syncopated"
]
},
"mode": {
"type": "string",
"enum": [
"draft",
"apply"
],
"description": "draft (default): show the result as a ghost preview the person accepts or discards on the page; apply: write immediately because the person explicitly asked for that."
},
"expectedStateVersion": {
"type": "integer",
"minimum": 0,
"description": "Optional stateVersion you last read; the call is rejected if the person changed the page since."
}
},
"required": [
"role",
"startBar",
"endBar"
],
"additionalProperties": false
}
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