Diminished Scale

The Diminished scale is another eerie sounding scale. Unlike all the
other seven note scales (except Pentatonic), the Diminished scale
has eight different notes.
Diminished works well over a major chord, dominant 7th chord or
power chord, but start the Diminished scale one half step higher
than the root of the chord.

Example  - For 'A' power chord, play 'A#' Diminished scale
         - For 'B' dominant 7th chord, play 'C' Diminishd scale.

Pattern 1

E II----------------------------------------------------4--(5)--7------
B II-------------------------------------------4--6--7-----------------
G II----------------------------------4--6--7--------------------------
D II-----------------------4--6--(7)-----------------------------------
A II--------------5--6--8----------------------------------------------
E II---(5)--7--8-------------------------------------------------------

Pattern 2

E II------------------------------------------------------------------------------11--13--14--16--
B II--------------------------------------------------------------10--12--13--15------------------
G II-----------------------------------------------8--10--11--13----------------------------------
D II-------------------------------(7)--9--10--12-------------------------------------------------
A II------------------6--8--9--11-----------------------------------------------------------------
E II---(5)--7--8--10------------------------------------------------------------------------------

#Please note that he numbers in close parenthesis is the root note