1. 
   Half diminished scale
   The half diminished scale is a musical scale more commonly known as "Locrian {music|natural}2", name which avoids confusion with the diminished scales (see octatonic scales) and the half-diminished seventh chord (min. 7, flat 5). It may be considered Mode VI, the sixth mode, of the ascending melodi...
   Found op http://en.wikipedia.org/wiki/Half_diminished_scale
   
   

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