Tchaikovsky's Opus 39 is a great set of short pieces for early to late intermediate pianists. Tchaikovsky sub-titled this collection "24 easy pieces (à la Schumann)". Like his predecessor, Tchaikovsky had the innate ability to write for young people, as illustrated here with this set of charming and characteristic miniatures. "Waltz", as the title indicates, is in the waltz genre with a 3/4 tempo. The hemiola in the middle part (a musical figure in which, typically, two groups of three beats are replaced by three groups of two beats, giving the effect of a shift between triple and duple meter) offers a rhythmic challenge.