GSequencer
Advanced Gtk+ Sequencer audio processing engine
GSequencer provides you various tools to play, create, edit and mix your own music. It features a step sequencer, piano roll, automation and wave-form editor.
Advanced GTK+ Sequencer is intended to be used for music composition. It features a piano roll, as well as a synth, matrix editor, drum machine, soundfont2 player, mixer and an output panel. It’s designed to be highly configurable. You may add effects to its effect chain; and add or remove audio channels/pads. You may set up a fully functional network of engines, thus there is a link editor for linking audio lines.
How to install GSequencer in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install gsequencer in Ubuntu
sudo apt install gsequencer
GSequencer Screenshots