Mu nyimbo, triad ndi seti ya manotsi atatu omwe amatha kusungidwa mu magawo atatu. Mawu akuti "harmonic triad" adapangidwa ndi Johannes Lippius mu "Synopsis musicae novae" (1612).
Zikawunjikidwa mu magawo atatu, mamembala a triad, kuyambira kamvekedwe kotsikitsitsa mpaka kumtunda, amatchedwa: Muzu Wachitatu - ake. mpata Pamwamba pa muzu kukhala gawo laling'ono lachitatu (ma semitone atatu) kapena gawo lalikulu lachitatu (ma semitone anayi) Wachisanu - nthawi yake pamwamba pa wachitatu kukhala gawo laling'ono lachitatu kapena gawo lalikulu lachitatu, motero nthawi yake pamwamba pa muzu imakhala yocheperapo mwachisanu (ma semitone asanu ndi limodzi) , wachisanu wachisanu (ma semitones asanu ndi awiri), kapena owonjezera asanu (ma semitone asanu ndi atatu).
Zolemba zoterezi zimatchedwa triadic. Akatswiri ena azaka za zana la makumi awiri, makamaka Howard Hanson ndi Carlton Gamer, amakulitsa mawuwa kuti atchule kuphatikiza kulikonse kwa magawo atatu osiyanasiyana, mosasamala kanthu za nthawi pakati pawo.
Mawu ogwiritsiridwa ntchito ndi akatswiri ena ponena za lingaliro ili ndi “trichord”.
Ena, makamaka Allen Forte, amagwiritsa ntchito mawuwa kutanthauza zophatikizira zomwe zikuoneka kuti zasanjikizidwa pazigawo zina, monga "quartal triad".Forte, Allen, (1973) The Structure of Atonal Music (New Haven and London: Yale University Press): ISBN 0-300-02120-8 Chakumapeto kwa Renaissance, nyimbo zaluso zakumadzulo zidasintha kuchoka panjira yopingasa "yopingasa" kupita kumayendedwe ofunikira "oyima", motero kudalira kwambiri utatu ngati gawo loyambira la mgwirizano wogwira ntchito. .
Muzu kamvekedwe ka atatu, pamodzi ndi digiri ya Kukula zomwe zimagwirizana, makamaka dziwani ntchito ya utatu womwe wapatsidwa.
Kachiwiri, ntchito ya triad imatsimikiziridwa ndi mtundu wake: zazikulu, zazing'ono, zochepa kapena zowonjezera. Atatu mwa mitundu inayi ya utatu amapezeka mu Major (kapena diatonic) sikelo.
Ndine Joost Nusselder, woyambitsa Neaera komanso wotsatsa malonda, abambo, ndipo ndimakonda kuyesa zida zatsopano ndi gitala pamtima pa zomwe ndimakonda, ndipo pamodzi ndi gulu langa, ndakhala ndikupanga zolemba zakuya zamabulogu kuyambira 2020. kuthandiza owerenga okhulupirika ndi maupangiri ojambulira ndi gitala.
