To install jack-keyboard just follow these instructions.
sudo apt-get install jack-keyboard
Which will install jack-keyboard and any other packages on which it depends.
|Maintainer||Debian Multimedia Maintainers <[email protected]>|
|Description||Virtual MIDI keyboard for 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.|