Mike Estep, Ph.D. (Keyboard, Vocals) has been a performing musician for 39 years and a music instructor for 22 years. He is fluent on multiple vocals-instruments in a variety of styles. Mike is also an expert in music-audio technologies. He holds several computing and music degrees, bringing a formal flair to ARBUCKLE XPRESS. But don't let his background fool you - Mike is an erupting volcano on stage.