This app acts as a MIDI control surface for iPads, mimicking a chromatic button accordion. It allows users to control external hardware or software synthesizers and virtual instruments via CoreMIDI.




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Double Bass Tuner Simple is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.









This app acts as a MIDI control surface for iPads, mimicking a chromatic button accordion. It allows users to control external hardware or software synthesizers and virtual instruments via CoreMIDI.


