大三:g-b-d;大六:b-d-g;大四六:d-g-b
小三:g-bb-d;小六:bb-d-g;小四六:d-g-bb
增三:g-b-#d;增六:b-#d-g;增四六:#d-g-b
减三:g-bb-bd;减六:bb-bd-g;减四六:bd-g-bb