____ ___
/\ _`\ __ /\_ \
\ \ \L\ \/\_\ ___ ___ ___\//\ \ ___
\ \ ,__/\/\ \ /'___\ /'___\ / __`\\ \ \ / __`\
\ \ \/ \ \ \/\ \__//\ \__//\ \L\ \\_\ \_/\ \L\ \
\ \_\ \ \_\ \____\ \____\ \____//\____\ \____/
\/_/ \/_/\/____/\/____/\/___/ \/____/\/___/
Piccolo is an algorithmic music generator that supports integration with Sonic Pi, utilizing the Open Sound Control protocol. Melody variations can be generated from MIDI sources and from messages sent by Sonic Pi directly in real-time. Algorithmic music composition implementations are based on Markov chains and Google AI’s Magenta neural network.
- Yarn
- NodeJS v16.13.2
- Typescript v4.5.5+
In order to install the application clone the repo and run the following commands:
yarn install
yarn compile
The first step would be to copy the code from Sonic Pi Demo Endpoint to an empty buffer in Sonic Pi.
After pressing Run in Sonic Pi, the piano part should start playing. The next step is to start the application.
In order to run the application run the following command:
node lib/src/cli.js
At the start of the application, the user is presented with multiple modes to choose from. The mode MIDI will be chosen in this example.
? Choose application mode ...
> MIDI
DIALOGUE
SEQUENTIAL
Next, some options need to be provided including the relative path of MIDI input, the location of the output files, the number of outputs and name of output file. In this example the file spiegel.midi is chosen (this file can be found in the midi/ folder in the root directory of the project repository). Additionally, an output folder needs to be created (midi_out/ is created in this example in the root directory).
? Please provide the following information
Source : midi/spiegel.midi
Out : midi_out/
No. of outputs : 5
Name of output file : test_melody
Afterwards the user will be presented with the music generator choice and corresponding options.
? Choose generator type ...
> Markov Chain
Magenta MusicRNN
The order of the Markov chain : 2
Number of steps to be generated : 100
If the MIDI file has more than one track, the user will be presented with the following question:
? The provided MIDI track includes multiple tracks.
Enter source track number: > 0
The MIDI file spiegel.midi consists of multiple tracks. Since variations on the viola melody will be generated in this example, the track number zero ("viola") needs to be chosen (the numeration of tracks starts from zero).
The application will proceed with generating the sequences and the user will be presented with a choice of sequences to send via OSC after the generation finishes.
Send sequence via OSC? (y/N) * true
? Choose sequence ...
> midi_out/3/test_melody_0.midi
midi_out/3/test_melody_1.midi
midi_out/3/test_melody_2.midi
midi_out/3/test_melody_3.midi
midi_out/3/test_melody_4.midi
The selected sequences will then be sent to Sonic Pi and the incoming OSC messages will be seen in Sonic Pi’s Cue Viewer.
The process of choosing and sending the generated sequence to Sonic Pi can be repeated
until the user types N in the Send another sequence via OSC? prompt.