I would be pretty amazed if Garfield hadn't played something-- one of my historical "what if"s is the effect of Garfield's assasination. He was brilliant, (one of his hobbies was geometry & he proved a couple theorems that got published) and got himself shot by a nut case and all we have is a good song ("My Name is Charles Guiteau" by Kelly Harrell in the Anthology)
I never heard before that Roosevelt had played the piano.