I play a lot of Irish music, and tend to use my ebony P37D. I’m a great fan of of the harmonica style reeds of the Yamahas, Suzukis etc because of the expressive capabilities, which I find suited to folk and jazz. And they give a good “bounce” for Irish music.
For classical and fairground styles, I’ve used the Vibrandoneon Mk I a lot. The tuning is stable, so it works with other classical instruments, and has a fullness and sweetness of tone.
I used the Clavietta once when I had to record a solo section with a string orchestra. It was recorded with a vintage mic, which added loads of depth and character.