The term FINGERBOARD FEATURE can be summarized by the four-letter word FRET. A FRET is a raised bar or ridge on the fingerboard of a stringed instrument, such as a guitar, that divides the fingerboard into segments for playing individual notes and chords. Frets are typically made of metal, but can also be made of wood, plastic, or other materials. The placement of the frets determines the instrument's intonation, which is the accuracy of the pitch of each note.