Da'irar biyar |

Tsarin tsari na maɓalli bisa ga matakin jituwa, dangi. An kwatanta shi da zane a cikin zane, inda aka jera manya da kanana maɓallai masu kaifi cikin tsantsar kashi biyar sama, da na lebur - cikin zalla cikin biyar. A ka'ida, kaifi K. zuwa. da flat K. zuwa. wanzu a zaman kansa, wakiltar, kamar yadda yake, karkace. An bayyana wannan ta gaskiyar cewa daga ci gaba da haɓakawa a cikin kashi biyar masu tsabta, ƙarin sababbin maɓallai suna tasowa tare da karuwa a hankali a cikin adadin masu kaifi, sa'an nan kuma sau biyu, kuma daga ci gaba da saukewa - sababbin maɓalli tare da karuwa a hankali. a cikin adadin gidaje, sa'an nan kuma sau biyu. Don gina manyan sauti masu kaifi daga duk sautuna 12 na octave, dole ne a matsa tare da K. zuwa. a cikin shugabanci na kaifi (a gefen agogo) zuwa cikakken juyi kuma kammala shi tare da maɓalli daidai daidai ga C manyan - C-kaifi babba (His-dur, 12 sharps).

Da'irar kashi biyar na manyan maɓallai na yau da kullun da ƙananan maɓalli (layi masu dige-gege suna nuna maɓallan daidaitattun anharmonic).

Motsi a kishiyar hanya tare da K.k. yana ba da manyan maɓallan lebur 12; a wannan yanayin, tonality inharmonically daidai da C manyan zai zama D manyan lebur biyu (Deses-dur, 12 flats). A aikace, duk da haka, a cikin kiɗa, saboda anharmonicity, kk yana rufewa, yana samar da babban da'irar manyan maɓalli masu kaifi da lebur, da kuma da'irar ƙananan maɓalli masu kaifi da lebur.

Vakhromeev