i have recently mastered the guitar solo from Queen's 'I want to break free'. However Brian May uses a strange effect on his guitar...i can't describe it but anyone who knows the song will know what i'm talkin about. My £140 Effect Pedal doesn't seem to have this effect, and i'd like to know if anyone can help me get this effect. Is it a simple re-adjustment of my amp or do i need a whole new effect board?