Anime Instrumentals [Preferably Opening and Ending Songs]

[j0x]

yo folks im looking for any Anime Instrumental Opening and Ending Songs but you can also list some cool background instrumentals of anime too

my favorites so far are

Cencoroll Preview Theme
Cencoroll Theme [Opening Song]
R.O.D. OVA Theme [Opening Song]
R.O.D. TV Theme [Opening Song]
Bacanno [Opening Song]
Kyousogiga Preview Theme

for background instrumentals

Gurren Lagann - Omae no XXX de Ten wo Tsuke!
Gurren Lagann - The Blue monday e'r'ectrical parade
Gurren Lagann - Omaera Zenin Moete Shimaetsu!!!
Gurren Lagann - BafBaf! Sonna ni Moeru no ga...Suki Kai?
Gundam UC - UNICORN
Gundam UC - RX-0
Samurai X - Instrumentals (Warrior's Suite; Na-Go-Mi)
Sword of the Stranger - Ihojin No Yaiba

hope you can supply me with some more

[GreatTeacherKen]

Trigun and Gungrave both have some good instrumental OP songs. Both are by Tsuneo Imahori. I prefer Trigun's guitar riff heavy H.T.

Cowboy Bebop's Tank, Gunsmith Cats' OP, Lupin III 2nd Season 4th Opening are all nice jazz pieces accompanied by a similar style of animation. I suspect the last of the three is possibly an influence on the former two.

[Obelisk ze Tormentor]

Both the OP and ED of Ghost Hunt are pretty cool. The OP is kinda spooky and the ED is sad.

As for BGM, wow, there's A LOT to mention. Fate/Zero's BGM directly comes to mind. Also many BGM from Naruto (not Shippuden), Gundam SEED, Fate/Stay Night, etc.

[ranran]

Maria-sama Ga Miteru First Season OP [Pastel Pure - Flute I think]
Maria-sama Ga Miteru OVA OP [Pastel Pure - ensemble]

[Elo the Blue]

Gundam Wing's "Just Communication" instrumental opening (closing on Cartoon Network in the US) never gets old for me.