Quote: Lovesauce "Sounded good in the early 70's.
Is guitar driven a newish term?'"
If you have a listen to a band called Kadavar (from Berlin) you will instantly hear the main sound been so-called "guitar driven".
I don't think its a new term but one of the many genres and sub genres that some writers use to categorise the differing sounds in rock and metal music.
Here are some of the main themes:-
Acid ,Alternative, Black, Blues, Breakcore, Celtic, Christian, Country, Crossover, Crunkcore, Crust punk, Dark metal, Deathcore, Doom Metal, Deathgrind, Electric, Emo, Experimental, Extreme, Folk metal, Funk, Glam, Gothic rock, Grindcore, Groove, Grunge, Hard, Indie, Industrial, Instrumental, Krautrock, Latin, Mathcore, Medieval, Melodic, Metalcore, Neo-classical, New Wave of American Heavy Metal, New Wave of British Heavy Metal, Noise pop, Nu metal, Pagan, Pop punk, Post-metal, Post-rock, Power, Progressive, Psychedelic, Punk rock, Rap metal, Rock and roll, Rockabilly, Screamo, Shock rock, Ska, Skate, Sludge, Soft rock, Southern, Space, Speed, Stoner, Surf, Swamp, Symphonic, Technical, Teutonic, Thrash, Trad, Viking.