A simple way of playing the blues scale.

Here is the musical formula for playing the blues scale: m3 - M2 - m2 - m2 - m3 - M2...in notes on A this is the same as...

A - C - D - D# - E - G - A

A simplified way of seeing it, is the same as a minor scale w/o the 2nd degree and the 6th degree to start with.  And then, this could be translated into a Pentatonic (minor derived) scale with an added minor second  between the 4th and the 5th degree...and there you have it!  The Blues Scale.

Keep playing :)

Update to original post:

Here is a short video detailing the mechanics of how to play the A blues scale as mentioned above: