An alumni of Berklee College of Music, Bob majored in performance and composition with teachers Gary Chaffee and Joe Hunt. He went on to study privately with Dave Weckl and Billy Cobham. Holz has composed and recorded for many live and studio recordings. Holz has also toured extensively as a band leader with Bob Holz and A Vision Forward.

​Bob has shared the stage with Larry Coryell, Ralphe Armstrong, Robben Ford, Les McCann, David Fat Head Newman, Cornell Dupree, James Cotton, Peter Tosh, The Outlaws, Mountain, Noel Redding, Foghat, Molly Hatchet, Head East, Savoy Brown, Wolfman Jack, The Winters Brothers, Blackfoot, Shemika Copeland, Johnny Winter, Eddie Money, Maria Muldaur, Dr. John, The Grass Roots, Three Dog Night, Blue Oyster Cult, Elvin Bishop, Duke Robillard, Renee Austin, Marcia Ball, Sue Foley, Otis Rush, Pinetop Perkins, Commander Cody, Point Blank, Grinderswitch, Stillwater, Bobby Kimball of Toto, Orleans, Brian Howe of Bad Company and George Clinton/ Parliament Funk.