If it's played on the guitar, its guitar music. You can't usually do a literal translation from one instrument to another when they have such different fingerings, stringings, techniques and outputs.

But you're right in that a lot of the harp repertoire is adaptable to guitar with pretty minimal changes. Guitar is the greatest instrument for imitating other instruments, IMHO.

It takes a hell of a good guitarist to play in the same tuning and repertoire all the time and not bore people. (See Bensusan, Pierre.) I could listen to JP Cormier just playing guitar all day. Us lesser fretbuzzers have to resort to switching instruments, trying different styles, alternating between songs and tunes, and learning things originating from different continents. (Or do like me, and just play in the living room, anything I like.)

Bill