TH
Tools

Your API keys

This public demo runs on your own AI accounts, so you control billing and usage. Keys are saved only in this browser (local storage on your device), never on our servers. When you use an AI feature, the key is sent over HTTPS to this app's server, which forwards your request to the provider and discards the key.

Used by Pitch Coach feedback and Multi-Agent Assessment. Get a key (opens in a new tab)

Used by the voice assistant, Task Hub agents, joke agents, playbooks, and SQL tools. Get a key (opens in a new tab)

Music analysis

Pitch Coach

Play or sing a single-note melody and compare it with the notes you meant to hit. Spotify's Basic Pitch model finds each note in your browser, a YIN pitch tracker measures intonation in cents, and the notes are aligned to your score. Your audio never leaves this device.

Recording and score

1. Recording

No recording selected.

Note names with octaves, separated by spaces (C4 = middle C).

Results

Your analysis will appear here

New here? Press Use sample, then Analyze performance. The first run downloads a small pitch model (about 1 MB).