For example, the harmonica notes are made as follows (based on 16H):
E A G B C D E F G A C B E D G F
Why not make it like this?
F G A B C D E F G A B C D E F G
The same goes for violin strings:
G D A E
Why not make it like G G G G
or A A A A
?
Is it for historical or scientific or practical reasons? I would like to know more details why.