Mordents and turns are types of what in music?

Mordents and turns are classified as ornaments in music. Ornaments are embellishments that add expressiveness and complexity to a melody. They enhance the musical line, making it more interesting and intricate.

A mordent involves rapidly alternating between a main note and a note one step above or below, while a turn includes a series of notes that circle around the main pitch. These techniques are often used to decorate melodies, highlighting expressive qualities and providing a richer listening experience.

The other options do not fit the definition of mordents and turns. Ostinato refers to a repeated musical phrase or rhythm. Arpeggios consist of the notes of a chord played in succession rather than simultaneously. Marcato signifies a style of articulation that emphasizes certain notes or chords but does not pertain to embellishing a melody as ornaments do.