Stellarizer
Christopher Bryant
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About this app
Stellarizer turns your musical ideas into new directions. Capture a phrase, draw a source, or start with a preset, then shape variations and explore an entire field of related patterns. Hear your patterns immediately with the optional built-in preview sound in the standalone app. The Get Started guide introduces playback, presets and MIDI routing. When you want another sound, connect Stellarizer to an instrument on your iPad. CAPTURE AND CREATE Record MIDI from the on-screen keyboard or a connected MIDI source. Create and edit your own phrases, import MIDI, and work with monophonic lines or polyphonic material. Set capture length, sequence length and quantization for your workflow. SHAPE YOUR IDEAS Explore pitch, rhythm, density, velocity and duration. Turn on the Grid for step columns and pitch lanes, with pinch to zoom. Use musical limits and locked notes to guide the result. Apply Legato to your source or variation, or enable it for generated patterns. Dice preserves intentional note durations as you explore. EXPLORE THE PATTERN PLAYGROUND Generate eight related patterns from one source. Audition discoveries, pin favorites, reroll individual patterns and send a result back to Shape for further exploration. PERFORM IT YOUR WAY Play any pattern Forward, Backward, Ping-Pong, Random, Random Walk or Scatter, at speeds from ÷16 to ×16. The notes stay as you wrote them. A cycle rail and glowing notes show exactly what is playing. TAKE A PATTERN INTO ORBIT Let a pattern evolve away from Home and return over 4, 8, 16 or 32 loops. Choose your distance, follow the moving constellation and keep a discovery along the way. Shape changes and rerolls can join the journey at musical boundaries. SAVE AND CONTINUE Browse factory presets, save your own, revisit recordings and export MIDI through the iPad file workflow. Replay Get Started or the Full Tour from Settings whenever you need guidance. STANDALONE AND AUv3 Stellarizer is a landscape iPad MIDI sequencer. Standalone includes optional preview sound and MIDI routing to other instruments. As an AUv3 MIDI processor, it sends notes to a connected instrument while the host controls transport and tempo. The built-in preview sound is available only in standalone. AUv3 use requires a host that supports MIDI-processor extensions and MIDI routing to an instrument. An external MIDI keyboard is optional.
What's new
Version 1.1.1 · Nov 13, 2026
This update fixes a freeze in AUv3 hosts: confirming INIT, deleting a user preset or clearing recordings could leave Stellarizer unresponsive until the host was restarted. Confirmations now appear inside the plug-in window and respond normally.
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