Check if two songs mix (Camelot key, BPM), read shared song DNA reports, tempo and nightcore math.
Connect Remote server
claude mcp add --transport http music-tools https://zeltorlabs.com/mcp
{
"mcpServers": {
"music-tools": {
"url": "https://zeltorlabs.com/mcp"
}
}
}
{
"servers": {
"music-tools": {
"type": "http",
"url": "https://zeltorlabs.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://zeltorlabs.com/mcp
Tools 6 found in our last check
check_mixDecides whether two songs will mix well, from their keys and BPMs, using the Camelot wheel and DJ tempo limits (about 3% sounds natural, up to about 16% is usable, half and double time count). Returns a verdict, the tempo change in percent and the target BPM for track B, the sma…
camelotGives the Camelot wheel code for a key and the three other keys that mix cleanly with it (one step either way with the same letter, and the relative major or minor).
tempo_changePercent change and playback rate to go from one BPM to another, how noticeable it will sound, the pitch change if it is not time-stretched, and the half and double time of the target.
speed_pitchFor a nightcore (faster and higher) or slowed (slower and lower) version: the pitch change in semitones for a speed, the new BPM if given, and typical settings. Defaults: nightcore 1.25x, slowed 0.80x.
transposeMoves a key up or down by semitones and gives the new key name and Camelot code, with a note on how natural the shift will sound.
song_reportReads the song DNA from a MusicMind report the person made on zeltorlabs.com and shared: key and Camelot code with the keys that mix with it, BPM, genre mix, section structure with energy, and production DNA (energy profile, mood, arrangement density, compression, biggest moment…
Details
| Endpoint | https://zeltorlabs.com/mcp (Streamable HTTP) |
| First published | 31 Oct 2026 |
| Last updated | 31 Oct 2026 |
| Registry name | com.zeltorlabs/music-tools |
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