The ayoyotes, ayoyotl, aztec jingles or huesos de fraile, are an idiophone percussion instrument of the Aztecs. It consists of a set of hard shells from the ayoyote or chachayote (chachayotl) tree of Thevetia genus, fixed to skin or cloth pieces in order to be tied to the ankles or wrists of the dancer or musician. Its sound is similar to that of the rain. This idiophone is used in concheros dance.
- Marchi, Regina M. (July 19, 2009). Day of the Dead in the USA: The Migration and Transformation of a Cultural Phenomenon. Rutgers University Press. ISBN 9780813545585. Retrieved 24 November 2012.
- Stevenson, Robert (1968): Music in Aztec and Inca Territory .