Based on the work of DoubleDensity's Tidebox

A complete Tidal musical live coding and audio streaming environment inside Docker

$ git clone https://github.com/lvm/tida1vm
$ cd tida1vm
$ git checkout 0.6
$ docker build -t tida1vm-0.6 .
$ docker run -ti --rm --privileged -v /dev/bus/usb:/dev/bus/usb --name tida1vm6 tida1vm-0.6

All of them are connected to ALSA "Midi Through".

They used to be named based on a particular use, now it's more generic.
In order to alias any stream, just write in your .tidal file, something like:

let something = midi4

-- now it can be used as:

something $ n $ tom "c d e f"

I forked the tidal-midi here, removing most of the synths (which I don't have) and added GM1Drums.hs configured after GM1 standards for percussion in GM soundfonts and uses gdrum (works with drum too, but won't recognize all GM1 values).

There's a small script in the helper directory called midithru-connect which connects clients to "Midi Through".

usage: midithru-connect [-h] [-v] [-a] [-c CONNECT] [-d DISCONNECT]

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         shows the current version
  -a, --all             auto connects all clients available
  -c CONNECT, --connect CONNECT
                        connects a client to midi through
  -d DISCONNECT, --disconnect DISCONNECT
                        disconnects a client off midi through

For more info, take a look at the wiki.

• Tidebox
• Tidal
• GNU Emacs
• tmux
• FluidSynth
• Qsynth
• amsynth
• GM Level 1 Sound Set
• TOPLAP The Home of Live Coding