Indicated Presto, Moment Musical No. 4 in E Minor is the fastest of the six moments musicaux (French for “Six Musical Moments”), Op. 16, a set of solo piano pieces composed by the Russian composer Sergei Rachmaninoff between October and December, 1896. Each Moment musical reproduces a musical form characteristic of a previous musical era. The forms that appear in Rachmaninoff’s incarnation are the nocturne, song without words, barcarolle, virtuoso étude, and theme and variations.