Phil Mattson created the curriculum for the School for Music Vocations at Southwestern Community College, and directed the Concert Choir, Chamber Singers, and VoicesIOwa in addition to his classroom teaching duties. He has taught at Pacific Lutheran University (WA) and served as Director of Choral Activities at Foothill College (CA) and Gonzaga University (WA). Mer Mattson has published more than 70 choral and vocal jazz arrangements and compositions for various publishers, including the UNC Jazz Press. He has been nominated twice for Grammy awards for arrangements and performance. He created the Phil Mattson School for Vocal Musicians in Spokane (WA) and led the Grammy-nominated P.M Singers. He has produced three CD recordings and an instructional video with VoiceIowa. He has directed the Phil Mattson Vocal Jazz/Choral Workshops in the U.S. and Canada, and administered the Southwestern Vocal Jazz Festival. He has been an active conductor, pianist, arranger and clinician and writes for professional vocal groups including the Four Freshmen, the Real Group, Chanticleer, Beachfront Property, the Dale Warland Singers and Manhattan Transfer.