16th notes on the d tune e string.  Really too chromatic to be in any real key. 

Clearly Slayerish

More of a power cord progression than a riff. Mainly in D minor (because of tuning. Played on standard tune guitar it would be E minor,)  I can't immediately identify who I pilfered the idea from???

Another Dminorish Riff- Progression

12/8 time?  In D minor because of tuning.  Heavy use of Aflat (Played at BFlat). 

Kinda Triplet Shuffle Feel- D Minor W Deibolis Musica

Another 12/8 triplet/shuffle riff in D-minor (D tuned instrument). Kind of goes with previous riff.

Shuffle Triplet Feel In D Minor. Part 2

Tuned to E-flat, played at 2nd string 7th fret, but entirely portable (No open string, can be played anywhere, in any key).

Kinda Of Maidenish. Eflat Minor, Portable

Instrument tuned to E flat.  Mainly in 7th position and 5th position.   

Kind Of Slayerly. E Flat Phrygian Dom A Flat Minor Towards End

Rhythm guitar only, Slow sabbathy type progression.

Slow Sabbathish Progression In E

Heavy shuffle. Sorry for flub in the middle. Its about saving these when the inspiration hits, not perfection. 

Heavy Shuffle 12.8 InFSharpMinor

Different enough from previous riff. Not as Sabbthy as previous shuffle feel riff. In F# but uses no open notes, Can be played in any key. 

Heavy Shuffle 12.8iish F Sharp Again,wav

Fast Slayerish in a hybrid F Sharp Minor.  

George Ostrowski