1) song: The world
Artist: Nightmare (j-rock band)
Anime: Deathnote opening
Instrument desired: piano

Song: Rose
Artist: Anna Tsuchiya
Anime: Nana Opening
Instrument: piano

if someone could atleast find one for me, it'd greatly appreciate it. Thank you.

have you checked josh's site?

Yes. They are both rock songs. He doesn't have the rose song and he has no songs from Deathnote.