Esther Alter has recently launched an open source minimalist and ergonomic MIDI sequencer for Windows, macOS and Linux. Cacophony is aimed at people who just want to make music without needing to learn pro software.
Housed in a customizable ASCII interface, the sequencer supports SoundFonts. You can export to wav, mp3, ogg, or mid, and optionally you can export each track separately.
It’s minimalist in that it doesn’t have a lot of functionality MIDI sequencers have. It’s ergonomic in that there is no mouse input and a very clean interface, allowing you to juggle less inputs and avoid awkward mouse motions.
Cacophony is available to purchase in Itch.io for $9.99 USD. You can also download the source code from Github and compile it for free.
More information: Subaltern Games