This piece requires two instruments from the flute family. The extended techniques are arranged here by instrument: alto flute and piccolo. An unwritten technique within this work is the rapid change between the two instruments. Unlike Federico's Little Songs for Children, where the flutist gradually changes embouchure from piccolo down to bass flute, this piece requires quick changes between two very different embouchures.
After learning the piece, it is important for the performer to practice the physical changes between alto flute and piccolo.