Huh what?
Minors and majors as in the chords/scales?
The four types of chords/scales are...
Major
Minor
Augmented
Diminished
If you really want to get into this, I suggest "The Complete Idiots Guide To Music Theory," 'cause it's helped me out a lot as well. Loads of info on making melodies, learning chords/scales, and loads more, it's a great book.
-Hopefully, that could help yah out : )
-SuperDrummer146
-Check my audio, especially "Dreamerz: Machines Will Fall"