Install seq24 by entering the following commands in the terminal:
sudo apt update sudo apt install seq24
Description:
Real time MIDI sequencer
Seq24 was created to provide a very simple interface for editing and playing midi 'loops'. It is a very minimal sequencer that excludes the bloated features of the large software sequencers and includes a small subset that proved to be useful for live performances.
Homepage: https://launchpad.net/seq24
Version: 0.9.3-2
Section: universe/sound