Original sentence: The band was composed of Michael Kang (acoustic/electric mandolin, electric guitar, and violin), Michael Travis (drums and percussion), Bill Nershi (acoustic guitar, lap steel guitar, and electric slide guitar), Kyle Hollingsworth (piano, organ, Rhodes, and accordion), and Keith Moseley (bass guitar), and, in 2006, Jason Hann, an auxiliary percussionist
Edited sentence: The band is composed of Michael Kang (acoustic/electric mandolin, electric guitar, and violin), Michael Travis (drums and percussion), Bill Nershi (acoustic guitar, lap steel guitar, and electric slide guitar), Kyle Hollingsworth (piano, organ, Rhodes, and accordion), and Keith Moseley (bass guitar), and, in 2006, Jason Hann, an auxiliary percussionist