Tertia |

mai ka lat. tertia – kolu

1) He wā i loko o ka leo o ʻekolu ʻanuʻu diatonic. unahi; hōʻike ʻia e ka helu 3. ʻOkoʻa lākou: T. nui (b. 3), loaʻa nā leo 2; liʻiliʻi T. (m. 3), loaʻa 1^1/2 nā kani; hoʻonui T. (sw. 3) – 2^1/2 nā kani; hoemi T. (d. 3) – 1 leo. Aia ʻo T. i ka helu o nā manawa maʻalahi ʻaʻole i ʻoi aku ma mua o ka octave. ʻO T. nui a me ka liʻiliʻi he diatonic. nā waena; lilo lākou i mau ʻeono liʻiliʻi a me nā mea nui. Hoʻonui a hoʻemi ʻia ʻo T. - chromatic intervals; lilo lakou i mau hapaono i hoemiia a hoonuiia.

ʻO ka T. nui a me ka liʻiliʻi he ʻāpana o ka unahi maoli: ua hoʻokumu ʻia ka T. nui ma waena o ka ʻehā a me ka lima (4:5) overtones (ka mea i kapa ʻia ʻo T. maʻemaʻe), ʻo T. liʻiliʻi – ma waena o ka lima a me ke ono (5: 6) nā leo kani. He 64/81 a me 27/32 ka huina waena o T. nui a me ka liilii o ka Pythagorean? Ma ka pālākiō, ua like ka leo nui me 1/3, a ʻo ka leo liʻiliʻi he 1/4 o ka octave. ʻAʻole i manaʻo ʻia ʻo T. no ka manawa lōʻihi he consonances, i ka kenekulia 13 wale nō. ʻike ʻia ka consonance o nā kolu (concordantia imperfecta) ma nā palapala a Johannes de Garlandia a me Franco o Cologne.

2) Ka degere kolu o ka unahi diatonic.

3) Triad leo Tertsovy (leo) triad, ʻehiku chord a me non-chord.

VA Vakhromeev