
A triptych of experimental, carefully vibe-coded (AI-assisted), tools for musical practice and exploration.
Everything runs entirely in your browser, and no data is collected.
Caldero Lab Apps are free, but if these tools resonate with you and you’d like to support the work, you can buy me a coffee! All donations will go towards the recording of my quartet’s debut album.
An in-depth scale exploration tool built around random or user-defined parameters. Explore modes, chords, and cycles, and visualize them on piano, staff, or custom fretboard diagrams—all exportable as printable PDFs.

Random nonsensical music created on demand to practice sight reading. Choose different clefs, meters, key signatures, number of measures, transpositions (including custom), note range, with playback with or without a metronome. Works on mobile but better on laptop or desktop

Random notes at spaced intervals or at each press of a button. Can be used for ear training, singing practice, intonation practice (singing, wind instruments, fretless instruments, slide guitar), improvisation practice, or whatever else you come up with. The Pitch Practice feature uses your microphone for real-time pitch detection. Audio is processed locally in your browser and is not recorded or stored.
