The six "Musical Moments" Opus 16 are a set of separate solo works for piano composed by Rachmaninoff in 1896. They present forms characteristic of previous musical eras, such as nocturne, song without words, barcarolle, etude, and theme and variations. Titles: No. 1 in B-Flat Minor * No. 2 in E-Flat Minor * No. 3 in B Minor * No. 4 in E Minor * No. 5 in D-Flat Major * No. 6 in C Major.