Robert "Bud" Spangler was an American jazz percussionist, composer, radio broadcaster, music producer, and concert organizer. He began his music career in the Detroit music scene of the 1960s, engineering for R&B, blues, and funk-oriented bands, and working as a drummer for jazz groups. In the 1970s that included working with Strata Records, Blue Note, and Tribe Records. After moving to Northern California in the 1970s, Spangler produced Grammy-nominated recordings for jazz artists such as Taylor Eigsti, Mark Levine, and Cedar Walton, and from 1982 co-led and performed in the modern jazz ensemble Tom Peron-Bud Spangler Interplay Quartet. From 1991 to 2007 Spangler helped create and produce the Woodside, California concert series Jazz at Filoli. He worked as a host-producer at radio stations from the late 1950s, including KCSM in San Mateo and KJAZ in San Francisco.