"O Sole Mio" (My Sunshine) was composed in 1898 by Eduardo di Capua with lyrics by Giovanni Capurro. It is a Canzone Napolitano and as such, does not have a typical 32-bar AABA or ABAC form. Rather, it has a 16-bar verse and a 16-bar chorus and both together make up the 32-bar form.
There are...