Opuscules refer to small literary or musical compositions that are deemed to be insignificant. There are several synonyms for the word, including tracts, pamphlets, brochures, leaflets, booklets, treatises, essays, and minor works. Each of these words represents a small work of literary or musical composition that has sufficient value to be published, but not enough to be considered a significant work of art. Typically, opuscules are creations of budding writers or musicians who are yet to hone their craft. However, they can also be the products of seasoned professionals who feel the need to experiment with different styles, genres, or forms of expression.