jack-keyboard 2.7.1-1build1 (s390x binary) in ubuntu bionic

 JACK keyboard is a program that allows you to send JACK MIDI
 events (play ;-) using your PC keyboard. It's somewhat similar to
 vkeybd, except it uses JACK MIDI instead of ALSA, and the default
 keyboard mapping is much better - it uses the same layout as
 trackers (like Impulse Tracker) did, so you have two and half
 octaves under your fingers.

Details

Package version:
2.7.1-1build1
Source:
jack-keyboard 2.7.1-1build1 source package in Ubuntu
Status:
Superseded
Component:
universe
Priority:
Optional