Ohatra Bdim, Bm7b5, Bdim7. ny akoro amin’ny gamme de C dia

Triad = C Dm Em F G Am Bdim (1 2m 3m 4 5 6m 7dim)
+7eme = Cmaj7 Dm7 Em7 Fmaj7 G7 Am7 Bm7b5

Ny akoro Bm dia fitambaran’ny naoty B D Gb (1 3b 5)

akoro Bdim = akoro Bmb5 = akoro Bm – 5eme + 5b = B D F (1 3b 5b)
akoro Bm7b5 = Bdim + dominant 7eme (7b) = B D F A (1 3b 5b 7b)

Ny akoro Bdim7 dia hafa kely satria tsy “Bdim + 7eme” izy na “Bdim + 7b” fa

akoro Bdim7 = Bdim + (7b)b = B D F Ab (1 3b 5b 7bb)

Matetika dia io Bdim7 io no antsoin’ny olona hoe “Bdim”. Jereo ihany koa fa mitovy daholo ny akoro

Bdim7, Ddim7, Fdim7, Abdim7

Mazotoa ndray ary aloha