Muraki x Tsuzuki
Muraki x Hisoka (Edit: I already got this)
Muraki x Saki
(I have Muraki x Oriya and Muraki and Tatsumi and Muraki and Watari all picked up.. I want to cover the relationship aspect with pairing songs. *snickers*
Send your songs via younsendit to me at firstname.lastname@example.org and clarify what the pairing is for the song and why you think it fits.