Pao Ferro is an exotic tree in Bolivia. Its wood is used for making fingerboards for basses and electric guitars. It has a similar feel and tonal qualities to Rosewood but has a slightly lighter colour. The fingerboard, also known as a fretboard, is a part of most stringed instruments. ... Martin EB18 Bass Guitar in flight case. ... An electric guitar is a type of guitar with a solid or semi-solid body that utilizes electromagnetic pickup (music)s to convert the vibration of the steel-cored strings into electrical current. ... Rosewood refers to a number of richly hued timbers, brownish with darker veining. ...