User profiles ~ Uploading images/media, storing arrays in custom tables and more.

You have the snippet call stored in a TV - I don't believe that the TV is evaluating the snippet. [or is even supposed to]

off the top of my head, I'm not sure how to gt that to work, but check the docs for the @EVAL binding and see if that is any help.

though my suspicion is that you can probably get where you are going more elegantly by doing some conditional processing in the template

worse-comes-to-worse, you can create a my_song chunk, call [[!my_song]] in there and in the TV value call the chunk [[$my_song]] ~ it's hackish, but it will work.