I usd to think Accordion was a funny instrument, but the artistry and technique is astonishing on some of the vids I've seen
There are some performances of the Tchaikovsky violin concerto on accordian that are just breathtaking. Stunning virtuosity and musicality that puts many a violinist to shame. I'm not particularly taken with the Mahler 9th, but it did occur to me that someone should rescore the 3rd movement of the M1 and use an accordian in the Klezmer sections!