Rests can have explicit pitches to
position them vertically. In the first bar, the first rest has no
explicit pitch and should use the default position, while the
remaining rests are explicitly positioned at pitches E4, F5, A3, and
C6. The second bar holds a full-measure rest at pitch G4 (within an
alto clef).MusicXML Part9601G2961quarter1E4961quarter1F5961quarter1A3961quarter1C6961quarter1C3G448011