harmonic DJ set builder

seafonic current

Turn a crowded playlist into a smooth, ridiculous little voyage by The DJ Big Sea.

private prototype

Shape the current.

Load a playlist, bring in BPM and Camelot keys, preview the order, then decide what gets sent back to Spotify.

03

Map the current

See how BPM, energy, and harmonic movement rise and fall across the entire set.

BPM Energy Key path

Build an order to see the full set map.

04

Preview the voyage

Spotify Premium playback is available after Spotify connects.

Keep an exported CSV after you finish BPM and key edits. It preserves your values and their source labels so you can restore the work later.

Bring in a playlist or load the demo to begin.
Tracks0
RangeWaiting
ModeNot set
#TrackArtistBPMKeyMove and focusListenSpotifyBeatportTraxsourceBandcamp
Your proposed order will appear here.
Shape the harmonic route

Choose a key for each track slot, then choose the matching track from its dropdown. The route can follow Camelot moves or take a chromatic turn when that better fits the set.

No route plotted yet. Choose a key for Track 1 to begin.
seafonic current notes

Transitions are scored for Camelot compatibility, BPM distance, and energy shape. Spotify’s private Mix controls remain a manual step.