There are less guitarists you recognise by listening to the first accord and the first and second riff. One of them died yesterday at the age of 64. Born in Glasgow he formed the blues-rock band that was world-wide known and made great commercial success. I am not the fan of this kind of music but the first two records by AC/DC were amazing. Different to other bands and full of power. I really liked their glam-inspired sound from the early days. Sadly he wasn't named when they discuss about great guitar players.
Rest easy Malcolm