How to learn all major scales easily

All needed to be remembered is the C major scales which has all the keys white.


C D E F G A B C


By looking at a keyboard instrument we see that it's structure is


Tone tone semitone tone tone tone semitone


So we use the same structure for any scale.


Example A major


A B C# D E F# G# A


General reference:


Musical Acoustics - Donald Hall