billy-fm — music library for live performers

how it works

your full library at a glance

Every song in your library. Color-coded by musical key.

Select a song. The panel shows key, BPM, chords, and your notes.

Matched songs surface. Non-matching songs fade out.

Drag any matched song into your queue.

Double-click makes it now playing. Your set builds itself.

End of the night. Set is saved as a playlist.

selected

no song selected

Same key / relative

BPM ±15

Same era

Same artist

Same genre

3 matches

NOW PLAYING

—

QUEUE (0)

PREV. PLAYED

SESSION

features

[key]

Color-coded by key

Every song gets a color from its musical key. See your library like a palette.

[≈]

Smart filters

Filter by key, BPM range, era, artist, genre, or play frequency.

▶

Live queue

Drag songs into a queue. The night runs itself.

↑

Setlist tracking

Every song you play is logged. Your set is always saved.

[♩]

Chords on demand

One tap opens the chord chart for the current song.

→

Public songbook

Browse songs added by other performers. Add theirs to your library.

[sp]

Spotify import

Import with key and BPM pre-filled from audio features.

[🔒]

Private songs

Songs only you can see. No marketplace exposure.

Transition suggestions

Link songs that flow well together. The app suggests what's next.

your songs. your palette.

5 mood palettes. every key gets a color. hover to preview.

what's new

Mar 2026

Universal drag & drop + global Now Playing

Drag songs between all panels — grid to queue, now playing to history, and more. Now Playing persists across all pages so your set never disappears when you navigate.

Mar 2026

Key filter, editable tags, favoritable playlists

Filter your grid instantly by musical key using the new color squares in the sort bar. Tag your songs with custom chips you can edit and remove. Star your favorite playlists to sort them to the top.

Feb 2026

Playlist detail page + transition indicators

Full playlist view with inline title editing, notes, drag-to-reorder, and transition indicators between songs that flow well together.

Feb 2026

Spotify import, chords, and private songs

Import songs directly from Spotify with key and BPM auto-filled. Add chords URLs per song. Mark songs private so they never appear in the public songbook.

ready to start?

free for performers. no credit card.

This app is built and maintained by one person. If it's useful to you, consider supporting it.

Support on Venmo ♥