Quck cheat sheet for Major and Minor Scales:

Major= Root Note,+2,+4,+5,+7,+9,+11,+12

Minor= Root Note,+2,+3,+5,+7,+8,+10,+12


Choose a root note for your Major/Minor scale and thats your "0" or
starting point. The numbers represent the amount of semitones or
keys on the keyboard you move UP in distance away from your "0"
aka your Root Note. So say I choose C as my Root Note and I want
to play a Major Scale it would be as follows. I start on C, my next
note in the scale will be +2 semitones up from C which is D. The note
after that will be +4 semitones up from C which is E. The note after
that will be +5 Semitones away from C which is F and so on. Its pretty
basic you just always start on your chosen root note and count how many
semitones up you need to travel for the next note in the scale.

I hope that makes sense and is somewhat usefull.

Want to learn music theory you say?

You live here now: http://www.hooktheory.com/theorytab

This is awesome. How did I miss this?

You can begin learning a major scale just by looking at the way the keys are constructed on your keyboard (if you're playing the C major scale) and from there you can apply this same pattern to any other key in order to play the major scale of that key

That's a good place to begin anyway