"In the key of C the notes are:1 2 3 4 5 6 7 8"1 becomes 8 on...

"In the key of C the notes are:
1 2 3 4 5 6 7 8"

1 becomes 8 on the next higher scale.
8 representing a new beginning...........of the next scale, 8 Biblically also represents Jesus, 1 is God the Father.

Hence Jesus in the Bible says, I am in the Father and the Father is in me. (Both Do's, one lower and one higher).

Numbers have representations and meanings. (Not numerology).