Doublings
Doublings are often called for in music written for Pierrot ensemble. For example, in Schoenberg's Pierrot Lunaire, the flutist is asked to play piccolo, the clarinetist is asked to play bass clarinet (as in Earle Brown's "Tracking Pierrot"), or saxophone, and (much more unusually) the violinist is asked to play viola. Other common doublings might include E-flat clarinet (as in Carter's Triple Duo), alto flute, or even harpsichord (as in Maxwell Davies's Eight Songs for a Mad King).
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