Roll Gb Mixolydian melodies from Gb, Ab, Bb, Cb, Db, Eb, Fb and download the MIDI. Set the contour and density, keep the ones you like. Free, no sign-up.
The flattened seventh removes the pull home, so melodies circle rather than cadence — phrases end on the flat seventh or the fifth and simply start again, which is what makes a vamp. Major with a flattened seventh. Losing the leading tone drops the pull home, which is what makes it sound like a groove rather than a cadence. In Gb Mixolydian that plays out over Gb, Ab, Bb, Cb, Db, Eb, Fb — 7 flats (Bb, Eb, Ab, Db, Gb, Cb, Fb). Set a contour and a density, roll until a line catches your ear, and download exactly what you heard as MIDI.
| Degree | 1 | 2 | 3 | 4 | 5 | 6 | b7 |
|---|---|---|---|---|---|---|---|
| Note | Gb | Ab | Bb | Cb | Db | Eb | Fb |
Key signature: 7 flats (Bb, Eb, Ab, Db, Gb, Cb, Fb).
W is a whole step (two semitones), H a half step (one), W+H a three-semitone jump. The pattern adds up to the octave.
The tonic is the darkest key; every other highlighted key belongs to the scale.
Stack a third and a fifth from the scale on every degree and you get the chords that belong to this key. Tick diatonic chords before downloading to put all 7 of them in the MIDI file after the scale itself.
| Numeral | Chord | Notes | Quality |
|---|---|---|---|
| I | Gb | Gb – Bb – Db | major |
| ii | Abm | Ab – Cb – Eb | minor |
| iii° | Bb° | Bb – Db – Fb | diminished |
| IV | Cb | Cb – Eb – Gb | major |
| v | Dbm | Db – Fb – Ab | minor |
| vi | Ebm | Eb – Gb – Bb | minor |
| bVII | Fb | Fb – Ab – Cb | major |
Start the same seven notes on a different degree and you get a different mode. These six share every note with Gb Mixolydian and differ only in which one is home.
funk, blues-rock, jam bands, Celtic music, and house tracks built on a dominant seventh vamp.
Pick a key and scale, then roll melody until something catches your ear. The generator writes each line note by note: it favours stepwise motion over leaps (the way most memorable melodies move), follows the contour you choose — rising, falling, arching, or wandering — packs the bars according to the density setting, leaves the occasional breath of rest, and always resolves to the tonic on the final note. Press play preview to hear the exact notes the download writes. This page arrives preset to Gb Mixolydian, so every roll stays inside Gb, Ab, Bb, Cb, Db, Eb, Fb and lands on Gb.
A generated melody is a starting point, not a finished song. For complete arrangements — melody, chords, bass and drums that belong together — open the MIDI Maker studio and generate a full track in Gb Mixolydian.
Or head back to the melody generator to build any combination yourself.
Every generated melody draws only from the Gb Mixolydian scale — Gb, Ab, Bb, Cb, Db, Eb, Fb, which is 1 2 3 4 5 6 b7 against the major scale — across roughly an octave and a half starting at Gb4, and always resolves to the tonic Gb on its final note.
The flattened seventh removes the pull home, so melodies circle rather than cadence — phrases end on the flat seventh or the fifth and simply start again, which is what makes a vamp.
Yes — the contour control biases the melody rising, falling, arching, or wandering, and the density control (sparse, medium, busy) sets how many notes it packs into each bar. Every press of "Roll melody" generates a fresh line with those settings.
Yes — each melody is generated on your device by weighted chance, not by a model trained on anyone else’s music, so it is yours to keep and royalty-free for personal and commercial projects.
The MIDI Maker studio rolls complete, editable arrangements — melody, chords, bass and drums — you can export to any DAW. Free, in your browser.
Open the Studio — Free