Early drum set player were influenced by the regimental music of the Civil war, as well as the African-influenced dance music, which remained a part of the black heritage of New Orleans and Other cities. Ragtime's syncopated feel was infectious and become a part of the repertoire of New Orleans brass bands, as well as the popular John Philip Souso Concert Band. The ability to improvise and/or augment drum parts within a particular style was a necessity. Many drummers created a "syncopated" quality to both the march-style music and ragtime by emphasizing the "weak" or "up-beat", often accomplished through the use of a closed or "crush" roll on those beats or by mirroring the melodies on the drum set.