LovePedal Hi Volt Buy Now: https://goo.gl/stuoZk Diamond Marquis Treble Boost Buy Now: https://goo.gl/tkk2Yt Black Sabbath "Symptom of the Universe" guitar lesson. The next Riff of the Day uses the Diamond Marquis treble booster and the Lovepedal Hi Volt distortion to recreate Tony Iommi's legendary metal tone. If you've ever played Symptom of the Universe in standard tuning, you might find it lacking in depth, that could be because it was originally recorded with C# standard tuning. The lower tuning helps the higher power chords using the D&G strings sound fuller and gives the overall timbre of your guitar a darker sound. The middle portion with the fast run uses a down/up/down/up pattern in the Locrian mode. Enjoy your Riff of the Day guitar lesson! #RiffoftheDay #GuitarLesson