midiom is a full-featured MIDI sequencer that runs as a standalone app on Windows and macOS. It offers several ways to edit — a piano roll, a rhythm editor and Recomposer-style numeric entry — with the mouse or entirely from the keyboard.
It also loads as a VST3 plug-in inside your DAW, running its sequences in lock-step with the host clock and bringing these editing methods into your DAW workflow.
Get midiom
Store page: mewlist.booth.pm/items/8482325
Highlights
- Piano roll — place notes with the mouse or the keyboard alone, with a full set of grids and tools.
- Numeric entry (Recomposer-style) — type position, length, gate and velocity cell by cell, with filters, F-keys and step bias.
- Rhythm editor — step-enter drums on a one-instrument-per-lane grid.
- Control lane — draw CC, pitch bend and tempo as curves.
- Master overview — arrange, copy and move across up to 16 tracks at once.
- Visualizer — a full-screen effects-and-visualisation view of the performance.
- VST3 sync — sync to host transport (play, tempo, time signature) and output MIDI to your instruments.
- Standalone — runs on an internal transport with a built-in preview synth.
- Import / export —
.midiomprojects, Standard MIDI File (.mid) import & export, and drag-to-DAW. - Format — VST3 + Standalone, Windows 10 / 11, macOS 12+ (Apple Silicon / Intel universal), up to 16 tracks.
Documentation
For details, see the midiom User Manual (with built-in JA / EN language switch).
Main chapters: Introduction / Quick Start / Installation / Piano Roll / Numeric Editor / Rhythm Editor / Shortcuts