Yes, Robin Williams did play musical instruments during his life.
Based on his own accounts, he had experience with at least two instruments:
- Piano: Williams stated that he "passed [his] piano barrier," indicating he learned to play the instrument. However, he personally opted not to perform the piano in public.
- Violin: He also had the opportunity to play the violin. In 6th grade, when his school offered orchestra, he took the chance to learn and play the violin.
These experiences demonstrate his engagement with music through instrumental performance.