Cleaning out my basement after the last of my daughters got married, I found my 1990's Kawai K4, a 16 bit sampled synth which I enjoyed pushing with Linux and Rosegarden back in the 90's. A lot of software development has taken place since those days, but the functionality was there in 2000, and only improves with time. This is the staying power of open source.
I'm now driving the K4 with the raspberry Pi, using ALSA sequencer interface, standard with the distribution, and a Midiman MidiSport 2x2 USB interface, also standard. 20+ year old hardware is working with a modern operating system, no issues, producing great sounds!
For the K4 fans, I'm using the GM1.snd general midi patches and a midi piano tutor called pianobooster. I know Ardour can handle this beast, and so I have to learn how Midi works with Ardour5.
