A song by a player of this instrument gave Louis Armstrong his first Broadway billing, following its trumpet solo. That song by a player of this instrument for the Hot Chocolates revue was rumored to be for alimony payment. Another player of this instrument used a D major over E-flat (10[1])chord for a song opening with the lyrics “Look at me, I'm as helpless as a kitten up a tree.” The songs (*) “Misty” and “Stormy Weather” were written by players of this instrument, which included Errol Garner. A dotted (10[1])quarter note eighth rhythm was used in a song named “Charleston” by this instrument’s pioneer James (-5[1])P. Johnson. (-5[1])Players of this instrument in Harlem often competed in “cutting (10[1])contests.” (10[1]-5[1])For 10 points, name this instrument played by Fats Waller and Art Tatum in a “stride” style. ■END■ (10[2]0[1])