For 10
 points, name this instrument which often performs solo in ragtime recordings.
Though Charles Mingus typically played bass, he switched to this instrument on the Oh Yeah album.
 The absence of this instrument is a hallmark of free jazz. The man who invented the "trumpet-style" way of
 playing this instrument claimed to have been playing it before meeting Louis Armstrong. That man, Earl
 Hines, replaced Armstrong's wife Lil Hardin on this instrument for the 1928 Hot Five recordings. Willie
 "The Lion" Smith, James P. Johnson, and Fats Waller were masters of the "stride" style of this instrument.
 A "player" version of this instrument played automatically by reading namesake perforated rolls. For 10
 points, name this instrument which often performs solo in ragtime recordings.
Though Charles Mingus typically played bass, he switched to this instrument on the Oh Yeah album.
 
{piano}