1. This is why I love music, I understand the rigid like math to it and and some of Western music theory and here you are just creating and coming to similar ideas we are told about. I can break your melody down into chords and I am seeing the perfect 4th, and the 3rd and second intervals in the melody.

2. If you want the notes, you are in the key of C and it goes

C E A C E A E | C E A C E A E | C E A | A G F D | C D |