Oxo Steps

MIDI step sequencer / arpeggiator

Example

Track 1 (Channel 1): Bass line from the chord's lowest note.
Track 2 (Channel 2): Chord stabs from selected chord notes, or fixed notes if preferred.
Track 3 (Channel 3): Arpeggio using all notes
Track 4 (Channel 2): Random in-key notes every now and then (Note the channel : it is the same instrument playing the chord).

Change chord, everything follows

Build up to 8 scenes. Each scene stores a chord plus pattern changes per track, so you can try progression ideas quickly.

Record your performance as a MIDI file and continue the idea in your DAW.

iPad AUv3

Or search "Oxo Steps" on your iPad App Store.

Desktop VST3/AU

Free

Monophonic or polyphonic tracks
Polymetric lanes (e.g. gate over 16 steps, notes over 12, octave over 6)
Pattern direction: forward, backward, ping-pong, random
Predictable probability lane controls (e.g. last bar of 4)
Two CC lanes to sequence your favourite plugin knobs (CC = Continuous Controller MIDI messages)
Chord memory
Track offset in ms: sync external hardware synths to the millisecond
Hold or legato (holds across patterns)
Chord progression presets (save and recall your favourite progressions, then try them on the current sequences)
Export as MIDI file: record your performance, continue in your DAW
Performance window: everything you need to perform in one place. Switch scenes, a knob for every CC
MIDI Learn: control the performance window via MIDI CC
Undo / redo

Quick visual reference of the main pages and setup.