OSC

Open Sound Control (OSC) is a protocol for communication among computers, sound synthesizers, and other multimedia devices. OSC's advantages include interoperability, accuracy and flexibility allowing for multiple commands to be sent simultaneously.

OSC offers real-time control of audio and other media processing devices while remaining both flexible and easy to implement

Ctrl for iPad allows custom OSC strings to be produced and triggered from each control

Furthermore, by using enabling 'OSC Remote Responses' (Located under each button type), the theme, state and label of each button can be remotely changed.