mrinkl.github.io
You play. Your agent arranges. A four-track loop sequencer that exposes its state as WebMCP tools, so ChatGPT or Chrome can add drums, chords and bass under what you just played — and ask your ears…
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 2 · Act 13 · Transact 0 · Score: Not yet scored
Tool inspector
add_bass
Generate a bass line on the bass track that follows the current chord progression using a named pattern. Use when the human asks for bass, a bassline or low end under the chords. Requires chords first (call add_chords); otherwise returns error needs_chords. Visible in the grid immediately; the loop keeps playing; returns undo_id.
Page: /bandmate/
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
pattern |
string | no | Bass pattern: root, root_fifth, octave, walking, or follow_kick (root on every kick). Default root. |
octave |
integer | no | Register: 2 (default, D2 to D3) or 1 (an octave lower, sub bass). |
Raw JSON schema
{
"type": "object",
"properties": {
"pattern": {
"type": "string",
"enum": [
"root",
"root_fifth",
"octave",
"walking",
"follow_kick"
],
"description": "Bass pattern: root, root_fifth, octave, walking, or follow_kick (root on every kick). Default root."
},
"octave": {
"type": "integer",
"enum": [
1,
2
],
"default": 2,
"description": "Register: 2 (default, D2 to D3) or 1 (an octave lower, sub bass)."
}
},
"required": [],
"additionalProperties": false
}
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