Emculweni, unxantathu iyisethi yamanothi amathathu angapakishwa kokuthathu. Igama elithi "harmonic triad" laqanjwa nguJohannes Lippius encwadini yakhe ethi "Synopsis musicae novae" (1612).
Lapho enqwabelene kokuthathu, amalungu kanxantathu, ukusuka ezwini eliphansi kakhulu kuye phezulu, abizwa ngokuthi: Impande Yesithathu - yayo. isikhathi ngaphezu kwempande kube ingxenye yesithathu encane (ama-semitones amathathu) noma ingxenye enkulu yesithathu (ama-semitones amane) okwesihlanu - isikhawu sayo ngaphezu kwesithathu sibe ingxenye yesithathu encane noma ingxenye yesithathu enkulu, yingakho isikhawu sayo ngaphezu kwempande sibe ingxenye yesihlanu enciphile (ama-semitone ayisithupha) , okwesihlanu okuphelele (ama-semitone ayisikhombisa), noma okwesihlanu okungeziwe (ama-semitone ayisishiyagalombili).
Ama-chords anjalo abizwa ngokuthi ama-triadic. Abanye osolwazi bangekhulunyaka lamashumi amabili, ikakhulukazi u-Howard Hanson kanye no-Carlton Gamer, banweba leli gama ukuze libhekisele kunoma iyiphi inhlanganisela yamaphimbo amathathu ahlukene, kungakhathaliseki ukuthi yiziphi izikhawu phakathi kwazo.
Igama elisetshenziswe abanye osolwazi kulo mqondo ojwayelekile lithi “trichord”.
Abanye, ikakhulukazi u-Allen Forte, basebenzisa leli gama ukuze babhekisele kuzinhlanganisela ngokusobala ezinqwabelene kwezinye izikhawu, njengokuthi “quartal triad”.Forte, Allen, (1973) The Structure of Atonal Music (New Haven and London: Yale University Press): ISBN 0-300-02120-8 Ekupheleni kweRenaissance, umculo wobuciko wasentshonalanga wasuka endleleni yokuphikisana “evundlile” waya ekuthuthukisweni kwezingoma ezidinga indlela “emile” kakhudlwana, ngaleyo ndlela wethembela kakhulu kunxantathu njengesakhiwo esiyisisekelo sokuvumelana kokusebenza. .
Ithoni yempande kanxantathu, kanye nezinga le- isikali elihambisana nakho, nquma ikakhulukazi umsebenzi kanxantathu othile.
Okwesibili, umsebenzi we-triad unqunywa ikhwalithi yawo: enkulu, encane, incishisiwe noma i-augmented. Izintathu zalezi zinhlobo ezine zonxantathu zitholakala esikalini esikhulu (noma se-diatonic).
NginguJoost Nusselder, umsunguli we-Neaera kanye nomkhangisi wokuqukethwe, ubaba, futhi ngiyathanda ukuzama izinto ezintsha ngesiginci enhliziyweni yesifiso sami, futhi kanye nethimba lami, bengilokhu ngidala izindatshana zebhulogi ezijulile kusukela ngo-2020. ukusiza abafundi abathembekile ngokurekhoda namathiphu esiginci.
