Robert Marcello with BOSS ME-20
Roland GR-55 guitar synthesizer demo sounds by Robert Marcello
Emotional Shredder-Robert Marcello
Roland GR-55 Guitar Synthesizer — Robert Marcello Artist Patches
Rob Marcello GT-10 Demo!!
FROG Backfire 100 Midi | Special Edition ROB MARCELLO | OZZY Solos
Kraft Music - Roland GR55 Guitar Synth Demo with Robert Marcello
Insomnia-Robert Marcello
Rob Marcello Of Danger Danger BOSS FX demo
Roland GR-55 Guitar Synthesizer Demo | Robert Marcello
Rob Marcello Boss Demonstration (full song)
Rob Marcello of Danger Danger BOSS FX demo
Robert Marcello with BOSS GT-10
BOSS GT-1 demo review Rob Marcello
Roland CUBE Lite Demo With Rob Marcello
Robert Marcello guitar demo - NAMM Music Industry Show 2013
Rob Marcello - Tracking solos for the debut "The Defiants" album Pt.3
Rob Marcello performs with the BOSS ME-70
Rob Marcello - Lick Of The Day #6! (Alternate Picking, Sweeping Lesson)
ME-20B Demo Summer NAMM 07 by Robert Marcello
