From the university of Wyoming department of music website:
Basketball Pep Band
Volunteer pep bands perform at Men's and Women's home basketball games. An audition is held during the fall to select two 20-member full time bands (Brown and Gold Band); however, more performers are welcome to play at the games. The full time members are paid $20 per game. The basketball pep bands are open to any UW student.
Each year a 29-member pep band is selected to perform at the Mountain West Basketball Tournament in Las Vegas, Nevada. If a UW team is selected for the NCAA tournament, the pep band would travel with the team to support the Cowboys and/or Cowgirls. The tournament bands are determined by attendance points at regular season basketball games.