Can anyone solve this P99 forum puzzle?

[Yasi]

Okay, here comes the extended hint:

Once my favourites were circles,
now i am closer to squares,
waiting for the one who shares,
to fulfil my last quest.

Ready the one must be,
to move silently or have bedazzling friends,
for sometimes I forget it's me.

An instrument is what I want,
though I am no bard and I can't chant.
The one will be dawn,
when dark red becomes fawn.