An Average Song

Oh, here's a song,
An average song.
It's not too short,
It's not too long.
It's not too high,
It's not too low,
It's not too fast,
It's not too slow.
It's not too old,
It's not too new,
It's not too gay,
It's not too blue.
It's also not too good, my friends;
So ain't you glad this is the end?