Have you noticed the "Filter" and "Age" boxes on the Forum Main Pages?
If you enter "first song" (without the quotes) in the filter box and "365 days" in the age box
and then click on "Refresh threads" you will find a listing of 2 threads.
The old thread about "You are my first song",
the new one about that song.

Or you simply click on
Old thread about You are my first song