This is the A Dorian.this is used in tons of songs eg (pink floyd shine on your crazy diamond) e----------------------------------------12-14-15------------ b-------------------------------12-13-15--------------------- g-----------------------11-12-14----------------------------- d-----------------12-14-------------------------------------- a---------12-14-15------------------------------------------- e-12-14-15--------------------------------------------------- Here it is in another position e-----------------------------------7-8-10------------------- b---------------------------7-8-10--------------------------- g----------------------7-9----------------------------------- d---------------7-9-10--------------------------------------- a--------7-9-10---------------------------------------------- e-7-8-10----------------------------------------------------- Chords that work well with the scale are c g d hope this helps people please rate