Setting up Virtual MIDI Piano Keyboard in Ubuntu | LINUX DIGEST
Install Virtual MIDI Piano Keyboard on Ubuntu Linux | VMPK | Free Piano Keyboard on Computer - YouTube
VMPK | Flathub
Setting up Virtual MIDI Piano Keyboard in Ubuntu | LINUX DIGEST
PianoBooster
Ted's Linux MIDI Guide
Amazon.com: Nektar, 49-Key Midi Controller (SE49),Black white Grey and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments
Virtual MIDI Keyboard in Ubuntu at Compdigitec Labs