“From the YT link: "This is your one-stop shop for Chico Marx playing the piano. Here's the Movies, Songs & the character Chico plays:
0:00 The Cocoanuts (1929) "Gypsy Love Song" as Signor Pastrami
1:57 Animal Crackers (1930) "Silver Threads Among the Gold" as Emmanuel Ravelli
3:26 Monkey Business (1931) "Pizzicatto / When I Take My Sugar to Tea" as Chico
5:12 Horse Feathers (1932) "Collegiate" as Baravelli
6:33 A Night at the Opera (1935) "All I Do Is Dream Of You" as Fiorello
8:11 A Day at the Races (1937) "Hungarian Rhapsody #2" and "On The Beach at Bali Bali" as Tony
10:24 At The Circus (1939) "Beer Barrel Polka" as Antonio
12:08 Go West (1940) "The Woodpecker Song" as Joe Panello
14:03 The Big Store (1941) "Mamãe eu Quero" as Ravelli
16:57 Night In Casablanca (1946) "Hungarian Rhapsody #2," "Beer Barrel Polka," and "Moonlight Cocktail" as Corbaccio."”