Mr. Red is right, too. Songs posted with just the words are just that... words to songs. I am usually pretty careful about who I share words to songs with, because they are so nude without the melody. Sometimes, the melody brings to life a word that in itself sounds like a God-awful choice. Like the word "excruciatingly," Or how about "simulated pearl." I've used both of those words in lines that worked well because they fit into the melody line well. Just seeing them on paper doesn't cut it.
I only had one experience with someone sending me a tape of their songs to critique. I made some positive suggestions, and asked some questions about the perspective in the songs, and never heard from the guy again. I thought that they were very specific suggestions regarding particular lines that I thought could use some tightening up, and found one of the songs confusing and internally contradictory. Even the kindest suggestions can be dangerous. Songs are like your "babies."