What is possible to be done with a guitar?

There are two amazing musicians I admire for their impeccable performances:
Yamandú Costa, a Brazilian prodigy musician from Rio Grande do Sul. He was born in a family who breathes music. By reading his biography, it is easy to know why he is considered to be one of the 10 best guitarists in Brazil:

''What is new or unique about Yamandu? He plays the 7-string guitar (a different instrument with different sound potential) and exploits the seventh string on the low end so that you hear two melodies or counterpoint lines and sweeping bass note swipes. The sound he delivers is an amalgam of Choro, the most played music in Brazil, with Gaucho melodies and dance rhythms producing a distinctly new sound. Most important, his style is unique: he has an aggressive masculine attack, with strong, firm fingering and explosion in his execution--technical brilliance (Frank Cherry) .''
Read his biograph in Portuguese. Read his biograph in English.
One of his videos on YouTube

A French/Canadian musician who plays rumba flamenco guitar has got me into a delicious song th other day. I first heard Havana, then I had to google him to find more songs which was not difficult due to his repertoire on the internet. Jesse Cook had a traditional musician tragetory but gave a chance to other kind od instruments to idealize his own style which is contagious. Yet, his website is a melody to read: www.jessecook.com. Read his biograph.
Watch one of his videos.