RtMidi

Haskell wrapper for RtMidi, the lightweight, cross-platform MIDI I/O library.

Development

This project is tested with Cabal (latest versions of last two compiler lines) and Stack (latest LTS).

You can get started with development like so:

# Build on OSX CoreMIDI support or Linux with ALSA support
# You can also pass `--flag RtMidi:jack` for Jack support
stack build

# Verify that it works:
stack exec -- rtmidi-query

There is also a Dockerfile in the docker directory and some make targets that can help you verify Linux builds:

# Build the image and tag it `haskell-rtmidi-dev`
make docker-build

# Enter the docker image
make docker-repl

# Inside the docker image:
cabal update && cabal build -fjack

(Note that you can't use any RtMidi functions in the containerized env unless you are running a Linux host, and even then you'd probably have to start the process with something like docker run --device /dev/snd.)

TODO

• Add Windows MM support. This should only require a few changes to the Cabal file.
• See if there is a way to autodetect Jack in the Cabal file.