This cooperatively breeding species lives in mixed-sex groups consisting of a dominant breeding pair and up to eight subordinates 9, 10. Although the degree of temporal coordination of vocal activity seems to be an important indication of the function of duetting, temporal properties of avian duets have previously rarely been quantified in detail.Ī well-studied duetting songbird species is the white-browed sparrow-weaver, Plocepasser mahali, which is native to eastern and southern Africa.
Growing evidence suggests that alternating vocalizations in avian duets are a direct result of the partners’ effort to avoid signal overlap 2, 8. While in some bird species vocalizations from both duet partners temporally overlap to a variable degree 2, 3, 4, other birds produce vocal duets in which the partners’ contributions alternate almost perfectly 5, 6, 7. Avian duets show a high diversity in complexity and in precision of coordination between the partners’ vocal emissions. Duet songs are generally defined as overlapping bouts of sounds produced by both members of a pair 1. We suggest that rhythmic cooperative behavior requires exact interindividual coordination of premotor neural activity, which might be achieved by integration of sensory information originating from the interacting partner.Īvian duetting is a rare phenomenon, which is mainly found among bird species of the southern hemisphere. The resulting interindividually synchronized neural activity pattern elicits vocalizations that perfectly alternate between partners in the ongoing song. We find that in the duet-initiating bird, the onset of the partner’s contribution to the duet triggers a change in rhythm in the periodic neural discharges that are exclusively locked to the initiating bird’s own vocalizations. Here we investigate the neural basis of vocal duetting behavior by using an approach that enables simultaneous recordings of individual vocalizations and multiunit vocal premotor activity in songbird pairs ranging freely in their natural habitat. The neural mechanisms that enable rhythmic interindividual coordination of motor actions are unknown. You can help Wikipedia by expanding it.Many organisms coordinate rhythmic motor actions with those of a partner to generate cooperative social behavior such as duet singing. Media related to Duos at Wikimedia Commons.In Renaissance music, a duet specifically intended as a teaching tool, to be performed by teacher and student, was called a bicinium ( see Étude). The word is also occasionally used in reference to non-musical activities performed together by two people. "Duet" is also used as a verb for the act of performing a musical duet, or colloquially as a noun to refer to the performers of a duet. A piece for two pianists performing together on separate pianos is referred to as a " piano duo". A piece performed by two pianists performing together on the same piano is referred to as "piano duet" or " piano four hands". In classical music, the term is most often used for a composition for two singers or pianists with other instruments, the word duo is also often used. The Duet (1628), by Hendrick ter BrugghenĪ duet is a musical composition for two performers.
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