Drumfxck

Drumfxck: the drumming based programming language.

A collection of programs that combine to process MIDI input as Brainfuck, interpret it, and use the interpreter execution as input into an audio/visual output.

drumfxck/midi_to_notes.py

Script to read input from the first attached MIDI instrument. Depends on the Python mido library, installable via pip.

Note that if there are problems getting input, check to see that the desired device is listed when mido.get_input_names() and if the desired device isn't the first one, specify the name as the argument to mido.open_input() on the line in main(). This file also handles the EOF note, so change it to suit your MIDI instrument as needed.

drumfxck/notes_to_brainfuck.py

Script to read processed notes and output brainfuck with correction character '~', which should be interpreted as a backspace. The mapping from note -> brainfuck lives here.

bf

Brainfuck interpreter. Program output is sent to standard error and execution state is send to standard output.

The first command line argument is delay between commands in milliseconds.

drumfxck-play

Program to play audio from BF interpreter.

drumfxck-gui

Program that displays an animated Pinkie Pie playing her drum kit in response to Brainfuck instructions for a fun visual display! Brainfuck instructions are passed to this on stdin.

Full credit for the models and animations go to CreatorOfPony. We only rendered them for our own angle.

Requirements

• Python 3
• CMake
• simpleaudio
• numpy
• mido
• pygame

Equipment

Drumfxck was mapped according to the Yamaha DTXIV. The mappings can easily be changed to suit any midi instrument in notes_to_brainfuck.py and escape sequence in midi_to_notes.py

To use Dan's drums: download & install Roland UM-ONE mx2 driver.

Setup

pip3 install simpleaudio numpy mido pygame
python3 setup.py develop
cmake .
make

Run

cd drumfxck

Without GUI:

./midi_to_notes.py | ./notes_to_brainfuck.py | ./feedback.py | ../bf 100 | drumfxck-play

With GUI:

./midi_to_notes.py | ./notes_to_brainfuck.py | ./feedback.py | tee >(drumfxck-gui >/dev/null &) | ../bf 100 | drumfxck-play

Final:

mkfifo f1; { ./midi_to_notes.py | ./notes_to_brainfuck.py | ./feedback.py | tee f1 | ../bf 100 & cat f1; } | drumfxck-gui | drumfxck-play; rm -f f1

Diagram