Q: how does one C Major
A: use the notes C, D, E, F, G, A, B, C. and maybe C, E, G at the same time, or C, F, A at the same time, or D, G, B at the same time. experiment a little and you will surely find other groups of notes in this set that work at the same time. and maybe even learn some of your favorite songs, using this note set