Lattice is a drum-pattern MIDI instrument for iOS and iPadOS that generates grooves live in your host. It works both as a standalone app and as an AUv3 plugin. Lattice helps you find strong drum ideas quickly: * Explore: shape patterns with an XY pad and intensity controls * Populate Banks: capture eight patterns plus two fills from the generator * Variations: edit strength per step (Off/Normal/Hard) and toggle hats between CH/OH * Arrange: build chains from your captured banks for evolving patterns * MIDI Routing: set per-lane note + channel, use routing templates, and enable Force Retrigger for tricky MIDI chains * Deterministic output: the same controls produce the same results, so you can reliably recall what you liked * Lattice is designed for performance workflows: changes apply at bar boundaries, playback can follow the active tab, and you can pin the top bar to lock playback to Live, a specific Pattern slot, or Chain. AUv3 MIDI Effect - Works in AUv3 hosts such as AUM, Drambo, Logic, and Cubasis - MIDI-only design compatible with any synth or sampler