What is formed by combining the staves of the treble and the bass clef?

Combining the staves of the treble and bass clef creates the grand staff, which is commonly used in piano music. The treble clef, positioned above, typically represents the right hand, while the bass clef below represents the left hand. This arrangement allows for a broader range of musical notation, accommodating both higher and lower pitches simultaneously. The grand staff is essential for notating complex compositions for keyboard instruments.