11) What is the standard tuning of a 6-string guitar?
12) What is the name of the 6th string on a guitar?
13) What is the term used for playing two notes at the same time on a guitar?
14) Who invented the electric guitar?
15) What type of wood is commonly used for the neck and fingerboard of a guitar?
16) What is the name of the piece that fits around the neck of a guitar, allowing for higher pitched notes to be played?
17) What type of fret is commonly referred to as "half" fret?
18) When playing an acoustic guitar, what type of pick is most commonly used?
19) What type of strings are most commonly used on an acoustic guitar?
20) What type of wood is commonly used for the body of an electric guitar?