Grand staff
DEFINITION
Keyboard music is frequently rotated using this combination of the treble and bass clefs. The two staves are arranged treble over bass. A long, curved, thick bar connects the two staves.the combination of a staff line notated in treble clef with one notated in bass clef. used primarily in scoring for piano, and other keyboard instruments, this staff is also sometimes used to score vocal works, such as hymns.<br><br>Keyboard music is frequently rotated using this combination of the treble and bass clefs. The two staves are arranged treble over bass. A long, curved, thick bar connects the two staves