OCTATONIC RIFF Hack Music Theory Download Share OCTATONIC RIFF by Hack Music Theory Share link Write a guitar (or synth) riff using the half-whole diminished scale 5-step method inspired by Ministry "Goddamn White Trash" Download includes: step-by-step PDF tutorial + multitrack MIDI 0:00/??? 1 Octatonic Riff 0:32 Octatonic Riff by Ray Harmony Share link 0:00/0:32