A catchy song

I wish that just for once -- that I could write a simple song
I wish I could write a catchy song -- so that you can sing along
But I don't think it's funny -- and I don't want to explain
For every song written -- the unmarked graves still remains

I wish that I could sum up everything -- in just a great phrase
But I've done that mistake before -- and I'll probably do it again
Cos I don't trivialize it -- and I still believe
For every song written -- so much more could have been achieved