A piano staff with dynamics and
clef changes, where each element (‘ffff’, a wedge, and clef changes)
applies only to one voice or one staff, respectively.
The key change is given only once, not specifying a particular staff;
it should thus appear on both staves.MusicXML Part80major2G2F41C581quarter1B481quarter1A481quarter111G481quarter1322A282quarter2B282quarter22C382quarter2D382quarter22majorG2A481quarter1B481quarter1C1581quarter1D581quarter132F1482quarter2G482quarter2A482quarter2B482quarter2C2D581quarter1C1581quarter1B481quarter1A481quarter132A482quarter2B482quarter2C1582quarter2D582quarter23211323222light-heavy