Bb Lydian Melody Generator — Free MIDI
Roll Bb Lydian melodies from Bb, C, D, E, F, G, A and download the MIDI. Set the contour and density, keep the ones you like. Free, no sign-up.
Notes: Bb4 – C5 – D5 – E5 – F5 – Bb5 – E6 – F6 – E6 – D6 – C6 – Bb5 – C6 – Bb5 – A5 – Bb5
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 Bb Lydian that plays out over Bb, C, D, E, F, G, A — 1 flat (Bb). 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 Bb Lydian scale
| Degree | 1 | 2 | 3 | b5 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Note | Bb | C | D | E | F | G | A |
Key signature: 1 flat (Bb).
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.
Bb Lydian on the keyboard
The tonic is the darkest key; every other highlighted key belongs to the scale.
Chords in the key of Bb 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.
| Numeral | Chord | Notes | Quality |
|---|---|---|---|
| I | Bb | Bb – D – F | major |
| II | C | C – E – G | major |
| iii | Dm | D – F – A | minor |
| bv° | E° | E – G – Bb | diminished |
| V | F | F – A – C | major |
| vi | Gm | G – Bb – D | minor |
| vii | Am | A – C – E | minor |
Related keys
- Bb Minor — parallel minor — the same tonic, a different third
- F Major — parent major scale — this mode is its notes started from a different degree
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 Bb 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 Bb Lydian, so every roll stays inside Bb, C, D, E, F, G, A and lands on Bb.
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 Bb Lydian.
Lydian melodies in every key
- C Lydian melodies
- Db Lydian melodies
- D Lydian melodies
- Eb Lydian melodies
- E Lydian melodies
- F Lydian melodies
- Gb Lydian melodies
- G Lydian melodies
- Ab Lydian melodies
- A Lydian melodies
- B Lydian melodies
More melody scales starting on Bb
- Bb Major melodies
- Bb Dorian melodies
- Bb Phrygian melodies
- Bb Mixolydian melodies
- Bb Minor melodies
- Bb Locrian melodies
- Bb Major Pentatonic melodies
- Bb Minor Pentatonic melodies
- Bb Blues melodies
- Bb Harmonic Minor melodies
- Bb Melodic Minor melodies
Or head back to the melody generator to build any combination yourself.
Keep building: scales, chords and drums
- Bb Lydian scale MIDI
- I–V–vi–IV in Bb Major
- vi–IV–I–V in Bb Major
- I–IV–V–IV in Bb Major
- I–vi–IV–V in Bb Major
- Drum MIDI generator
- Audio to MIDI converter
Frequently asked questions
What notes will a Bb Lydian melody use?
Every generated melody draws only from the Bb Lydian scale — Bb, C, D, E, F, G, A, which is 1 2 3 b5 5 6 7 against the major scale — across roughly an octave and a half starting at Bb4, and always resolves to the tonic Bb 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 Bb 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