Same old song

The songs that sounded alike.

Radio gave me a fright.
Three songs, right in a row.
Coulda combined all three in a over dub.

so why so many sounding the same?
With 7 notes A to G,
And half ways in between.
(Except for E & B)

That’s a lot of combinations it seems to me.!

So Why so many sound the same?

Just a few chords we like to make,
The rest must be hard to tame.

“Guess it’s not the music we play 
But the words we say 
To separate 
From the rest”