Tertia |

laga bilaabo lat. tertia - saddexaad

1) Muddo u dhexaysa mugga saddex tallaabo oo diatonic ah. miisaanka; lagu tilmaamay lambarka 3. Way ku kala duwan yihiin: T. weyn (b. 3), oo ka kooban 2 cod; T. yar (m. 3), oo ka kooban 1^1/2 codadka; kordhay T. (sw. 3) – 2^1/2 codadka; la dhimay T. (d. 3) - 1 cod. T. waxay ka tirsan tahay tirada dhexda fudud ee aan ka badnayn hal octave. T. waaweyn iyo kuwa yarba waa diatonic. dhexda; Waxay isu rogaan lix meelood oo yaryar iyo kuwa waaweyn, siday u kala horreeyaan. Korodhka iyo hoos u dhaca T. - dhexda chromatic; waxay isu beddeleen hoos u dhac iyo kordhin lixaad leh, siday u kala horreeyaan.

T. weyn iyo kuwa yar waa qayb ka mid ah miisaanka dabiiciga ah: T. weyn ayaa la sameeyay inta u dhaxaysa afraad iyo shanaad (4: 5) kor u kaca (waxa loogu yeero T. saafi ah), T yar - inta u dhaxaysa shanaad iyo lixaad (5: 6) dhawaaqyo. Isku-dhafka u dhexeeya T. weyn iyo yar ee nidaamka Pythagorean waa 64/81 iyo 27/32, siday u kala horreeyaan? Miisaanka dabeecadda leh, codka weyn wuxuu la mid yahay 1/3, codka yarna waa 1/4 octave. T. muddo dheer looma tixgelineynin shibbane, kaliya qarnigii 13aad. shibbanaha saddex meelood meel (concordantia imperfecta) ayaa lagu aqoonsaday qoraallada Johannes de Garlandia iyo Franco of Cologne.

2) Darajada saddexaad ee miisaanka diatonic.

3) Codka Tertsvy (tone) saddex-geesood, chord toddobaad iyo mid aan ahayn.

Vakhromeev