Which elements are pieced together to create a theme in a piece of music

Melody, harmony and rhythm

Explanation:

    The melody is a sequence of musical notes. With a succession of rhythmic sounds, which are organized in a way, they provide a musical sense for those who are listening. Through the melody, we can recognize the songs with a simple whistle.

    To build a melody, it is necessary to organize musical notes with duration, intensity and pitch. the simpler, the easier it will be to memorize the melody.

    The rhythm is what will dictate the musical tempo and style of music. Through the duration of each sound and its duration, it is possible to give rhythm to the music. The accentuation stands out in this element, it makes regular marking between the succession of strong and weak sounds, divided into portions of value called compasses.

     When two or more sounds are played simultaneously, producing a chord, they are called harmony. There are two ways to refer to harmony: to refer to the selection of notes that make up a particular chord (formation), and in a broad sense, to describe the unfolding or progression of the chords throughout a composition.

i dont undersi dont understand

they are often in theme and variations