Does anyone know the words to the song that goes "I u-l-l-used to p-l-lay my yel-l-low banjel-l-lo and rel-l-lest it onl-l-lon my knee-l-l-l-e" (It's a bit difficult to spell out but if you've heard the song you'll know what I mean)

I think it (the banjo) is broken and taken to the menders - but what happens next?