Hey hey,
up front: there's only one Csound instrument in it. But this also marks my inspiration to create the Csound handpan instrument, based on the live played Rav drum used in this piece.
Csound: the physically inspired piano with extra resonators. Don't get confused: there is actual acoustic piano from a sample library as well.
And, I am loving your handpan instrument(s)!
I have been sharing them with a few tops students who are working on physical modeling for their thesis projects.
And as always: thank you for your kind and encouraging words, Richard. they are well received and treasured.
I can only hope that this haphazard approach of part modelling, part guess work and sound alike can help your students in any way. Well, perhaps they can assist in a small piece of music, somewhere. That alone fulfills my hopes.