I can’t remember where I heard this from but a while back I heard (or possibly read… sorry, I should have been paying more attention) a discussion as to whether lyrics are more important that a song’s tune or vice versa.
Obviously songs vary wildly – take Kylie’s ‘Can’t get you out of my head’ for instance. According to http://www.elyrics.net/read/k/kylie-minogue-lyrics/can_t-get-you-out-of-my-head-lyrics.html there are 12 (mostly four-lined) verses. Four are repeated choruses, four are the ‘la, la…’ refrain leaving four unique stanzas. So in this case the music must have the upper hand. But take someone like Bob Dylan and he would doubtless win on his lyrics before even taking one of his songs apart.
So who wins? Despite being a writer, I vote for tune but I’d be interested to know what other people think.