Bassline Generator

The starting bassline

Make a bassline around four chosen chords

Start with a four-bar C minor idea: Cm, A-flat, E-flat and B-flat, one chord per bar. The output is the bass part alone. Its chord names explain the harmony behind the chosen notes without adding hidden chords or drums to the download.

House, Techno and Hip-Hop offer different rhythmic starting families. House emphasizes offbeat notes, Techno uses short pulses and gaps, and Hip-Hop leaves room around longer and delayed notes. Choose a key and four diatonic chord degrees, then explore another variation.

Edit the bass rhythm as well as the pitches

Choose a bar and one of its four beat slots. Set a note or rest, move its start within that beat and choose its held length. Notes can be chromatic across C1 to B3. This is a compact beat-slot editor, rather than an unrestricted piano roll.

Each note stays inside its beat, keeping the part monophonic. Moving a start later shortens an overlong note and updates the displayed length. A lock preserves that exact slot through variations and key or harmony changes; a locked note can therefore sit outside a newly chosen key. Undo restores earlier edits.

Use the bass part in your own session

Play once hears all four bars at the chosen tempo. MIDI carries the visible bass notes, rests and timing so you can use your own bass instrument. The WAV carries a synthesized bass reference with the same events, without an added backing track.

Copy a settings link to reopen the editable pattern silently. Generation and exports happen in your browser without an account or an AI generation request. Import the downloaded file into music software yourself; the link does not create or transfer a TunePal app project.

Common questions