higher buttons and the tempo info added.
Note: Repeat chorus after each verse.
Repeat final line of closing chorus a couple of times, fading out at end.
Gb is not a common accordion key, but (further down this list), Simon & Garfunkel sing it with the Everly Brothers in the key of A.
In this video, the chorus of the song is "abbreviated", and in different ways.
They omit the second verse.
I think I'm-a gonna cry.
Bye bye my love bye-bye.
Click HERE ​for information about the husband and wife composing team of Felice and Boudleaux Bryant (wikipedia) .