Oh, gotchya. I thought you meant the tiganza music.
The following comment is based on knowledge from the end(ish) of Book 4, The Shadow Rising:
If the above theory is correct, the song would have a nature-based theme.
Yeah, I always pictured the tiganza as belly dancing and the sa'sara as a lap dance. :look
I don't know that either would have lyrics though. Does it mention what the music they were dancing to was like?