The bits underneath the choruses are exactly what I was getting at with "Not Alone," yep. :) Mysterious and a little wistful, but so very far from evil, which IMO fits with the peacock's power set as shown so far... never mind just who the holder was assisting, ahem. Speaking of, I suspect we're on the same page as far as who the previous holder was, but I'm not sure the, er, current/momentary holder is going to keep the fully functional miraculous once it's (hopefully) repaired. At least, I hope not. I'm holding out for the previous suspected holder getting it back, unlikely though hints (monkey's paw wish) laid throughout the series make that sound... Ah heck, who am I kidding, I'd totally watch an episode or more in flashback of that person and Duusu, years prior to current series timeline, somehow under Wayzz and Master Fu's combined radar as night-flying protection of the vulnerable of Paris. But then, a certain other person would obviously have to get wind of it, and that would likely go badly indeed, potentially leading to whatever happened to...

This avoiding spoilerific commenting thing is darn tricky! And the above musing turned into half a self-insert at speed. Whoops.

I can see a variation close to Carapace's theme, if not a complete match, working for Sass powering a transformation. Then again, Sass read as a bit snarky and less introspective and mellow than Wayzz, so a more upbeat theme could be part of the difference. Some of it may well depend on who his chosen turns out to be, see also Rena Rouge and the flute, Carapace as a scratch DJ, as you pointed out above.