roland-piano 0.3.1

A library to interface with Roland FP pianos over midi

Roland Piano

Library for interfacing with Roland FP pianos over midi. Tested on both Mac and Linux.

Installation

Run:

python3 -m pip install roland-piano

How this started

I found the button only interface on my Roland FP-10 somewhat limiting. The app would give more insight, but was a bit too buggy IMO. Hence I decided to reverse engineer the Roland specific midi messages and create a Python API so that people can build their own interface. Feel free to contribute!

Examples

Setting and reading the volume.

import time
from roland_piano.roland_piano import discover, RolandPiano

piano_name = discover()
with RolandPiano(piano_name) as piano:
    for i in range(0, 100):
        piano.volume_set_percent(i)
        print(f"Readback Volume: {piano.volume_get_percent()}")
        time.sleep(0.5)

Toggle metronome and increase the BPM.

import time
from roland_piano.roland_piano import discover, RolandPiano

piano_name = discover()
with RolandPiano(piano_name) as piano:
    # toggle metronome, todo: find way to obtain state of metronome
    piano.metronome_toggle()
    for i in range(50, 200):
        piano.metronome_set_bpm(i)
        print(f"Readback BPM: {piano.metronome_get_bpm()}")
        time.sleep(0.5)

Loop over all the instruments.

from roland_piano.roland_piano import discover, RolandPiano, Instruments

piano_name = discover()
with RolandPiano(piano_name) as piano:
    for instrument in Instruments:
        if instrument == Instruments.UNKNOWN:
            continue
        print(f"Setting instrument to {instrument}")
        piano.set_instrument(instrument)
        print(f"Get instrument: {piano.get_instrument()}")

Limitations

• Doesn't trigger events (e.g. volume changed) over midi when changing many of the piano settings. Connecting with the app enables this, so I (or you😃) need to do some digging on how this is achieved. Contact me for more information on what I have tried so far.
• API is quite limited at the moment, but there is some low hanging fruit for more functionality.