Roland INTEGRA-7 Random studio set generator

This app requires a Roland INTEGRA-7 Synth module connected via USB.
The app randomly selects instruments for the INTEGRA-7.
The instruments are set in the INTEGRA-7.
Since not all modules can be loaded in an INTEGRA-7, there are switches for selecting what modules to randomly select sounds from.
It is possible to random select all 16 parts at once, but also to random select a sound for one part.
The preview play is available in addition to a screen keyboard.
There are 16 preview play buttons, one for each part.
The current part is set when using a preview play or selecting a single random sound, thus selecting what part the keyboard uses.
The keyboard has 3 octaves that can be shifted up or down one octave at a time.
When selecting a drum set (fixed at part 10) the different instrument names are printed on the keyboard keys.
The generated set of instruments can be stored in a slot in the INTEGRA-7, or deleted, if needed.