Chord progression is Chord's row.
It can use for composition or a performance by getting to know chord progression.
I will memorize what is first called a three code.
When a key is set to C, it is three, C, F, and G.
It is easy to be connected with F and G from C, is connected with C and G from F, and is easy to be connected with C and F from G.
C-F-G-C
It can make from such touch.
