Which guitar innovator and player has a range of gibson guitars named after him?

Lester William Polsfuss

Explanation:

Lester William Polsfuss, born in 1915 in America better known to others as Les Paul, invented the solid-body electric guitar in 1941. Gibson Guitar company launched Les Paul Guitar in 1952. The guitars by Les Paul are known for their sound, some call it as legendary. Some of the best guitarists in the world still play them. The guitar is considered to be good, still collected by many but is known to be expensive.  

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.  

your answer would be d.)