One of the few works I like from the guitar repertoire:
(although, I'm not familiar with guitar interpreters nor a good version of this piece, but I know some of guitar's repertoire because half of the students in my school are guitarists... this version seems quite good though)
From Cuban composer Leo Brouwer:
(Although I find it a bit cliched at times, specially those mayor 7ths that generate in 0:55 - 0:56 and then reappear in 1:21, I know, I sound pretentious but that's what I think

, but I like the general idea of the work, if you pay attention you'll notice it's just the cell/motif from 0:20 - 0:23 what generates the whole movement

)
Movement I:
From Villa Lobos, played by one of the best living Mexican guitar players: