. "Octatonic_scale#Gamma_chord" . . "Octatonic scale" . "diminished scale" . . "diminished scales" . . . "diminished-scales" . . . "Octatonic" . . "diminished" . "Diminished Scale" . "Octatonic scale#Alpha chord" . "Diminished or octatonic scale" . . "Octatonic scale#Beta chord" . "Octatonic scale" . "octatonic scale" . . "octatonic" . . "octatonic scales" . "Octatonic scale#Gamma chord" . "octatonic collection" . "Variations on an Octatonic Scale" . "octatonicism" . "Octatonic_scale#Alpha_chord" .