Originally a nighttime wooing song, it evolved into a short sequence of musical works, comparable to the divertimento, cassation, and notturno, beginning in the late 18th century. In art music, an example of the first genre is the serenade "Deh! Vieni sul giardino" (1766) by Antonio Salieri (1683-1754). The term is now used for any short musical piece intended to be played at dusk or early dawn. In the 19th century, the serenade became popular as an evening entertainment, especially in Italy. A group of musicians would assemble in the street outside a house where a woman was waiting with her window open. They would play several pieces, usually including a march, a string quartet, or a piano solo. The women enjoyed these songs very much and would often invite the musicians in to drink tea or coffee with them. This is how the word "serenade" came to mean a romantic song sung by one person to another outside their window. Today, the term "serenade" still refers to this type of outdoor concert, but it also can mean a short musical work performed on a single instrument, such as a guitar, violin, or piano, at twilight or early dawn.