Gravity & Wind vs Chord Freeze

Gravity & Wind is a physics-driven generative MIDI sequencer and performance controller for iPhone and iPad. Build evolving sequences with Timed generation, hold an exact population with Fixed mode, or tap the field to perform directly. Shape gravity, directional dual-noise wind, bounce, and velocity response, then turn floor impacts into quantized MIDI notes. Free features include five scales (Major, Natural Minor, Major Pentatonic, Minor Pentatonic and Chromatic), 12 factory scenes, motion control, all generation modes, basic CoreMIDI Note/Velocity output, output channels, Bluetooth MIDI, manual sustain-pedal forwarding and up to five user scenes. Presets play with their saved scales, MIDI/Auto pitch, CC and sustain settings even in the free version. You can turn advanced settings off, edit basic parameters, and save within the five-scene limit. Enabling or changing advanced modes requires Pro; reloading a preset restores its settings. MIDI Learn/mappings and MIDI ball triggers remain Pro features. A single, permanent Pro in-app purchase unlocks choosing all 24 scales, enabling and editing advanced preset modes, and the MIDI Processor AUv3 with host sync, automation and project recall; MIDI chord pitch control and Channel 2 ball triggers; MIDI Learn; scene-energy CC 1, Wind CC 2, Direction CC 3; Held and chord-aware Automatic Sustain; and unlimited user scenes shared with the AU. No subscription. Eligible customers who purchased the app before the switch receive Pro automatically. Gravity & Wind has no built-in sound source. Route its MIDI to a software instrument, hardware synthesizer, or DAW. No separate account registration, advertising, or third-party analytics. Purchases and restoration use your Apple Account through the App Store.

You want something to solo over. Your options are a looper pedal you have to buy and carry, a backing track that locks you into someone else's key and tempo, or a second guitarist who is not currently in your living room. Chord Freeze is the fourth option. Play a chord. Tap Freeze. It holds — indefinitely, unchanging — while you play scales, modes, and leads on top of it. Tap again to release, and freeze a new chord. IT SOUNDS LIKE YOUR GUITAR Because it is your guitar. Chord Freeze captures the sound coming in and sustains that: your pickups, your amp, your pedals, your hands. It isn't a synth patch doing an impression of a guitar, and it isn't a sampled instrument. The chord you hear held is the chord you just played. Under the hood it's a granular engine rather than a looped buffer, which is why it doesn't tick, stutter, or breathe the way a short loop does. There's no seam to hear, however long you hold it. SIMPLE ENOUGH TO USE MID-PRACTICE One big button. Three knobs. Two switches. No menus, no presets, no project files. • DELAY — how long Auto-Freeze waits after your strum settles • WINDOW — how much of the chord it captures • VOLUME — the frozen chord's level against your live playing Freeze is retroactive: it grabs the sound that was already ringing just before you tapped, so you strum, let it settle, then tap. No countdown, no timing it perfectly. HANDS-FREE IF YOU WANT IT Turn on Auto-Freeze and it captures by itself once a chord has been sustaining — no reaching for the phone mid-exercise. Set DELAY to pick the moment it grabs, and keep both hands on the guitar. WORKS WITH WHAT YOU HAVE Plug in a USB or Lightning interface — iRig, Focusrite, anything class-compliant — and Chord Freeze switches to it automatically for a clean direct signal. No interface? The built-in mic works fine; just use headphones. TRY IT PROPERLY FIRST Twenty-five freezes, free, with nothing held back — the full app, not a limited demo. If you keep it, a one-time in-app purchase unlocks unlimited freezing forever. No subscription, no account, nothing to renew, no ads. Even after the trial, live monitoring, all the controls, and the help screen keep working. YOUR AUDIO STAYS ON YOUR DEVICE Chord Freeze processes everything locally. Nothing is recorded to disk, nothing is uploaded, and there is no analytics or tracking of any kind. The microphone is used to hear your guitar and nothing else. REQUIRES iPhone or iPad running iOS 17 or later. Headphones or an audio interface are strongly recommended — the built-in speaker and built-in mic together will feed back, so Chord Freeze mutes live monitoring automatically in that configuration.