nbw / gems

A music sequencer on a distributed cluster. Written with Phoenix LiveView

GEMS

A minimal Globally Editable Music Sequencer.

Code

GEMS relies heavily on:

• Elixir

• Phoenix Framework

  • LiveView: real-time SSR
  • Presence: cross-cluster socket tracking
  • PubSub: cross-cluster socket events

• libcluser

  • connecting nodes into a cluster

• Tonejs

  • synth
  • audio effects

• Flyio

  • hosting: globally distributed cluster

Usage

If you'd like to use GEMS locally, you'll need to install Elixir. I'd suggest using asdf for that.

GEMS doesn't rely on a DB so:

# install dependencies
mix deps.get

# install js dependencies
mix setup

# start the server
mix phx.server

# server should be available at http://localhost:4000

Using Clustered Nodes Locally

1. Start the first node:

PORT=4000 iex --sname abc@localhost -S mix phx.server

2. Start a second node:

PORT=4001 iex --sname xyz@localhost -S mix phx.server

Future Ideas

• output MIDI via the WEB MIDI API
• add more synths, effects, and controls

Contributions

Contributions or ideas are welcome, espeically fixes. But I'd also encourage you to fork it and make it your own.