Brahms is a command line utility written in Go that quickly generates good-looking visuals of midi-files.

It is inspired by Off the staff by Nicholas Rougeux.

Feel free to open PRs, issues, etc. I'm glad to help.

Below you can see an example of Beethoven's Symphony Nr. 9 (at least i think so, I can't remember exactly 🤷‍):

Generated some other nice visualisation? Share it here with the world in the project's showcase.

Please ensure that you have installed midicsv and made it available in your PATH variable so you can call it directly from the command-line.

You can test your midicsv installation by calling midicsv -u in your console. The expected output has to be similar to this:

Usage: Your\Path\Where\It\Is\Midicsv.exe [ options ] [ midi_file ] [ csv_file ]
       Options:
           -u            Print this message
           -v            Verbose: dump header and track information
Version 1.1 (January 2008)

1. Download the latest .exe release here.
2. Add the downloaded executable to your PATH variable.

NAME:
   brahms - visualize your music

USAGE:
   brahms -i path/to/midi [global options]

VERSION:
   v0.1.0

GLOBAL OPTIONS:
   --in infile, -i infile     infile
   --out outfile, -o outfile  outfile
   --colors hex, -c hex       case-insensitive comma-separated string of hexcolors, e.g. '#40e0d0,#ff8c00,#ff0080'
   --fill-opacity value       (default: 0.5)
   --help, -h                 show help (default: false)
   --version, -v              print the version (default: false)

For nice gradients look at https://uigradients.com/ or at https://webgradients.com/.