The Bus Driver Tour is not actually a musical project featuring those long-suffering schleppers of school children. It's the collaboration of three songwriters (Danny Freund, Ian Thomas and Paul Lee Kupfer) who met on the road and, according to their bio, "shared a common code of living that would find them around campfires late at night while touring out of an old school bus." Hence the band's name. Their show promises three distinct vocalists, melodic harmonies and a full gamut of influences. The Bus Driver Tour pulls into Altamont Brewing on Thursday, May 23. 9:30 p.m., $5. http://www.altamontbrewingcompany.com.