GridStep

GridStep is a professional MIDI step sequencer designed for clarity, control, and predictable results. It works as a standalone app as well as an AUv3 plugin. GridStep provides a focused grid-based workflow with explicit edit modes, per-step inspection, and one-shot generation tools. Every interaction is intentional, allowing patterns to evolve without ambiguity. Core Features Explicit Edit Modes - Dedicated modes for Notes, Velocity, Slides, and Mutes - Clear, consistent interactions across the grid Precision Grid Editing - Step-based grid with visible playhead and pattern length - Per-step inspector for detailed control - Efficient editing without leaving the main view Trigger-Based Step Advance - Advance the sequence using incoming MIDI triggers instead of the host clock - Enables irregular rhythms, external control, and non-linear playback - Fully compatible with standard clocked playback Controlled Generation - Pattern generation for notes, velocity, slides, and mutes - Apply generation globally, per lane, or per selection - Designed to support musical intent Performance-Focused Design - Deterministic, repeatable sequencing behaviour - Stage-safe interface optimized for quick adjustments - Predictable timing within AUv3 hosts AUv3 MIDI Effect - Works in AUv3 hosts such as AUM, Drambo, Logic, and Cubasis - MIDI-only design compatible with any synth or sampler Built for both live performance and composition, GridStep emphasizes stability, readability, and repeatable behaviour.