KB-1 provides a highly responsive touch interface with multiple keyboard types, including piano, organ, and isometric layouts, plus full MPE support for polyphonic expression. It excels in mobile setups by sending detailed MIDI data including velocity, channel pressure, and pitch bend per note, ideal for controlling synths, samplers, or DAWs with nuanced performance. Recent updates have added features like arpeggiator support and Ableton Link compatibility, enhancing its role in live and studio workflows.
The app runs as a standalone MIDI controller and AUv3 MIDI processor on iPhone and iPad, integrating seamlessly into hosts like AUM or GarageBand. Its flexible design supports custom scales, chord modes, and MIDI routing, making it suitable for both finger-drumming and melodic playing in iOS environments.
Key features include:
- Multiple keyboard layouts (piano, isometric, organ) with customizable key sizes and colors
- Velocity, aftertouch, and MPE polyphonic expression support
- Built-in arpeggiator and Ableton Link for synchronized sessions
- Chord detection and strumming modes for expressive playing
- MIDI learn, CC mapping, and multi-channel output
- Preset saving and sharing for quick setup changes
App price: $12.99




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