following centuries th century american musicians playing working class audiences small pubs bars particularly african american composers developed new musical genres based modern piano ragtime music popularized composers scott joplin reached broader audience popularity ragtime music quickly succeeded jazz piano new techniques rhythms invented piano including ostinato boogie woogie shearing voicing george gershwin 's ''rhapsody blue'' broke new musical ground combining american jazz piano symphonic sounds comping technique accompanying jazz vocalists piano exemplified
Humanities Performing arts Music Piano