Lub npe los ntawm tetra (los ntawm Greek- "plaub ntawm ib yam dab tsi") thiab chord (los ntawm Greek chordon-" hlua" lossis "sau"). Nyob rau hauv ancient Greek suab paj nruag txoj kev xav, tetrachord qhia ib ntu ntawm cov txheej txheem ntau dua thiab tsawg dua zoo tag nrho uas cuam tshuam los ntawm cov ntawv sau tsis tau (Greek: ἑστῶτες); cov ntawv sau ntawm cov no yog txav tau (Greek: κινούμενοι).
Leej twg tsim tetrachord?
Pythagoras (c. 570 - c. 500 BC), piv txwv li, xav txog kev ua suab paj nruag ua haujlwm li cas thiab nws yog thawj tus saib rau hauv kev sib raug zoo ntawm cov suab paj nruag (uas yog octave yog tsim los ntawm plaub. thiab thib tsib). Ntxiv rau, cov Greekstau tsim lub tswv yim ntawm tetrachord - plaub sau ntawv ntawm qhov ntsuas.
Puas yog tetrachord ib triad?
Plaub tetrachords tshawb hauv Tshooj 6 yog tag nrho cov piv txwv ntawm cov ntawv sau ntxiv tetrachords. Ntawd yog, txhua lub tetrachord pib ua triad ua los ntawm peb cov ntawv sib txawv uas tau koom nrog lub suab paj nruag.
Koj paub tus tetrachord li cas?
A tetrachord is a four note scale A tetrachord yog plaub ntawv xwb. Feem ntau ntawm Western nplai muaj 8 daim ntawv, yog li lub tetrachord tuaj yeem xav tias yog ib nrab ntawm cov nplai. Ib yam li lub caij nyoog yog lub tsev thaiv hauv cov suab paj nruag, tetrachord yog ib qho (loj) lub tsev thaiv ntawm qhov ntsuas. Ob lub tetrachords ua ke los ua ib qho nplai.
Puas yog nplai tib yam li tetrachord?
Ib lub tetrachord yog ib pawg ntawm plaub lub suab nyob rau hauv qhov ntev ntawm 6 ib nrab-kauj ruam (lub caij nyoog ntawm tritone). Tetrachords ua rau a mini-scale Tetrachords tuaj yeem xav tias yog HALF ntawm qhov ntsuas. Feem ntau ntawm cov suab paj nruag jazz feem ntau siv yog ua los ntawm ob lub tetrachords.
