A short song can survive a bad performer; a long one cannot.quote
not necessarily.
Martin Carthy said, and i may be quoting out of context. The only damage you can do to a song is not to sing it.
I think what he meant is in relation to traditional songs, was, that the song will survive bad performance.
my opinion is that a long song and a short song can survive bad performance, dependent of the quality of lyrics and tune. regardless of length .
what Robert Waltz said IS UNPROVEN it all depends on the factors i mentioned