One of the first to look at the guitar as an instrument like the piano. He took piano pieces and adapted them for the Guitar.
Taught Allan Reuss
Seven String guitar which has an additional low string tuned to A
Lap- Piano The Guitarists Challenge versus piano . The guitarist has only six strings and five fingers. Sacrifice a note either root or fifth. On the spot chord realization
Andy Summers Message in a Bottle Police Tune
Modern players such as:
Listen to Low bass notes produced by seventh string
Notice how close to the melody he sticks, quotes melody fragments in the beginning and ending.