# PhraseLab: MIDI Composer — Chords, melody, bass & arps > Chords, melody, bass & arps (iPhone/iPad app by Higher Plane Software Ltd.) - Source: https://appshunter.io/ios/app/phraselab-midi-composer/id6783402454 (this page in markdown: same URL + `.md`) - Developer: [Higher Plane Software Ltd](https://appshunter.io/developer/1784108016) - Category: Music, Productivity - Price: $14.99 - Age rating: 4+ - Requires: iOS 16.0 · 18 MB - Released: 2026-11-23 - Data updated: 2026-11-08 ## What is PhraseLab? PhraseLab writes music with you. Choose a key, a scale and a genre, press Generate, and PhraseLab builds four parts that belong together: a chord progression, a melody, a bassline and an arpeggio. Every part follows the same harmony, so nothing clashes. It's built on music theory: chord movement shaped by genre, voice leading that keeps chords moving smoothly, basslines anchored to each chord's root, and melodies shaped into phrases, with hooks that come back. Use it on its own (standalone), or load it as an Audio Unit (AUv3) instrument in your favourite host. PhraseLab writes MIDI rather than making its own sounds: you hear it through your AUv3 instruments. One purchase. No subscriptions, no ads, no account. Four lanes, one harmony • Chords: progressions shaped by genre, from plain triads to extended jazz voicings, with Complexity and Tension controls • Melody: shape, density, leap size, syncopation and repeating hooks • Bass: walking, root-fifth, octave, offbeat, rolling, one-drop, tumbao and more • Arpeggio: up, down, Alberti, guitar picking and more, at rates from whole notes to 1/32, with triplets and dotted notes • Lock the parts you like and regenerate the rest, lane by lane • Edit any chord by hand, choosing from over 30 chord types 32 genres Ambient, Cinematic, Lo-Fi, House, Pop, Neo-Classical, Jazz, R&B, Synthwave, Trap, Hip Hop, Trance, Techno, Drum & Bass, Funk and Disco, Latin, Reggae, Gospel, Blues, Prog Rock, Dungeon Synth and more. Each one sets every part to suit the style, and over 250 factory presets give you a place to start. Scenes and arrangement • Keep ideas as scenes, such as a verse, chorus and bridge • Arrange scenes on a timeline and play the whole song • The same seed and settings always give the same result, so you can get back to any idea Sound and MIDI • In standalone mode: load an AUv3 instrument on each lane, with volume, pan, mute and solo • In standalone mode: send each lane to other apps on its own virtual MIDI port • Export MIDI files of one lane, a scene or the whole arrangement • Import chords from a MIDI file and build on them • Over 30 scales, from the church modes to Hirajoshi and the whole-tone scale In a host app As an AUv3 instrument, PhraseLab sends its four lanes to your host as MIDI, one channel per lane, and follows the host's tempo and transport. Your host needs to support MIDI output from AUv3 instruments. Loading instruments on lanes and the virtual MIDI ports are only available in standalone mode. Made for iPhone, iPad and iPhone Duo Layouts for every screen, in portrait and landscape, including both displays of iPhone Duo. Whether you need a chord progression to get started, a bassline for a beat or a full sketch of a song, PhraseLab gets you from a blank page to an idea in seconds. ## Is PhraseLab safe? Not enough ratings yet to assess PhraseLab. ## Is PhraseLab legit? PhraseLab: MIDI Composer has limited verification signals. The AppsHunter Legitimacy Score for PhraseLab is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 1 release) ### 1.0.1 — 2026-11-23 No release notes. ## More apps by Higher Plane Software Ltd - [Once Upon A Dream](https://appshunter.io/ios/app/once-upon-a-dream/id6744868488) - [AltiMETAR: METAR & TAF](https://appshunter.io/ios/app/altimetar-metar-and-taf/id6745760528) All apps by Higher Plane Software Ltd: https://appshunter.io/developer/1784108016 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-08.*