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Ab Lydian Melody Generator — Free MIDI

Roll Ab Lydian melodies from Ab, Bb, C, D, Eb, F, G and download the MIDI. Set the contour and density, keep the ones you like. Free, no sign-up.

Melody: 10 notes over 4 bars, arch contour, medium density.
Notes: Ab4 – Bb4 – C5 – G5 – Ab5 – Bb5 – Ab5 – Bb5 – Ab5 – Ab5

The raised fourth wants to rise to the fifth, so melodies often approach the fifth from underneath through it; holding the #4 against a major chord is the sound film composers use for wonder. Major with a raised fourth. The sharpened fourth removes the pull of the perfect fourth, which makes the scale float and widen instead of resolving. In Ab Lydian that plays out over Ab, Bb, C, D, Eb, F, G — 3 flats (Bb, Eb, Ab). Set a contour and a density, roll until a line catches your ear, and download exactly what you heard as MIDI.

The notes of the Ab Lydian scale

Degree123b5567
NoteAbBbCDEbFG

Key signature: 3 flats (Bb, Eb, Ab).

Step pattern

  • W
  • W
  • W
  • H
  • W
  • W
  • H

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.

Ab Lydian on the keyboard

CDFGEbAbBb

The tonic is the darkest key; every other highlighted key belongs to the scale.

Chords in the key of Ab Lydian

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.

NumeralChordNotesQuality
IAbAb – C – Ebmajor
IIBbBb – D – Fmajor
iiiCmC – Eb – Gminor
bv°D°D – F – Abdiminished
VEbEb – G – Bbmajor
viFmF – Ab – Cminor
viiGmG – Bb – Dminor

Related keys

The other modes of these notes

Start the same seven notes on a different degree and you get a different mode. These six share every note with Ab Lydian and differ only in which one is home.

Where the Lydian scale is used

film scores wanting wonder or scale, jazz over major chords, progressive rock, and dream pop.

How it works

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 Ab Lydian, so every roll stays inside Ab, Bb, C, D, Eb, F, G and lands on Ab.

What can you do with a melody MIDI file?

  • Drop it onto any instrument track in your DAW as a topline, hook, or counter-melody starting point.
  • Edit the notes on the piano roll — keep the phrase you like, rewrite the rest.
  • Roll a few variations in the same key and splice the best bars together.

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 Ab Lydian.

Lydian melodies in every key

More melody scales starting on Ab

Or head back to the melody generator to build any combination yourself.

Keep building: scales, chords and drums

Frequently asked questions

What notes will a Ab Lydian melody use?

Every generated melody draws only from the Ab Lydian scale — Ab, Bb, C, D, Eb, F, G, which is 1 2 3 b5 5 6 7 against the major scale — across roughly an octave and a half starting at Ab4, and always resolves to the tonic Ab on its final note.

What makes a melody sound like Lydian rather than any other scale?

The raised fourth wants to rise to the fifth, so melodies often approach the fifth from underneath through it; holding the #4 against a major chord is the sound film composers use for wonder.

Can I control the shape of the melody?

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.

Is the generated Ab Lydian melody royalty-free?

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.

Want full tracks, not just melodies?

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