The ''[[Franchise/DotHack .hack]]'' series has some incredible music, it can create a mood perfect for its context and is enjoyable to listen to whilst not playing.

!![[VideoGame/DotHackR1Games .hack//IMOQ]]

* [[http://www.youtube.com/watch?v=dB2OEgtkLf0 Blackrose's theme]].
* [[http://www.youtube.com/watch?v=M2Q8ernLnrM Aura's Theme]].
** It stays just as good when changed up a bit to [[http://www.youtube.com/watch?v=Q9NTrkt1wns Macha Appears]].
* [[http://www.youtube.com/watch?v=oB1JcSk9CBw Dun Loireag]].
* [[http://www.youtube.com/watch?v=YphwUd6pfwc Culture City]].
* [[http://www.youtube.com/watch?v=tQuPLfBfrJY Sigma Sky Root]].
* [[http://www.youtube.com/watch?v=iWF8J__sTbY Skeith: The Terror of Death]]. Such an awesome song that most of the other Phases had remixed versions of it for their own themes.
* [[http://www.youtube.com/watch?v=PUrU0gu2mN0 Cathedral]].
* [[http://www.youtube.com/watch?v=YcRQ4c_FSPM Cubia's]] [[http://www.youtube.com/watch?v=qyzlcb47dfY themes]]. Rather unorthodox for such an epic encounter, in that they are very slow-paced and haunting, yet manage to be awesome in its own way, and very fitting for the battle.

!![[VideoGame/DotHackGU .hack//G.U.]]
* [[http://www.youtube.com/watch?v=jDYknUkcyfI Eight Keys]].
* [[http://www.youtube.com/watch?v=aTXDyiBZLVI Hope of Dawn]]. Aura's theme gets a makeover and is even more beautiful.
* [[http://www.youtube.com/watch?v=kmrbYe9aQJg I'm Right Here!]] Skeith has to have an awesome theme. It's kind of a requirement.
* [[http://www.youtube.com/watch?v=TSv9o5cgxfo The Epitaph is Told]], Ovan's theme.
* [[http://www.youtube.com/watch?v=5BgL-MBC4h0 Everything in These Hands]], Azure Kite's impossibly epic battle theme.
* Cubia gets three themes this time: [[http://www.youtube.com/watch?v=TBuB9xZ84yA The Third Crisis]], [[http://www.youtube.com/watch?v=WyLhY2EYFDw Full Force]], and [[http://www.youtube.com/watch?v=wKN83qQqCjQ Final Bout]]. All are pure awesome.
* [[http://www.youtube.com/watch?v=jeQT9kcNFGw You Smiled Kindly]], one of the three {{Award Bait Song}}s for the games sung by Tomoyo Mitani, aside of her role in singing the choruses for the entirety of the saga's soundtracks. [[http://www.youtube.com/watch?v=18SQxu-KtSo The Whereabouts of Truth]] is excellent as well.
* [[http://www.youtube.com/watch?v=g_H5Rzt9auE Yasashii Hikari.]]
* All of the themes for the Lost Ground areas are wonderful as well, such as [[http://www.youtube.com/watch?v=4Vs43AwdRMo Dead World of Indieglut Lugh]], [[http://www.youtube.com/watch?v=M0X352xmwmY Hulle Granz Cathedral]] and [[http://www.youtube.com/watch?v=0Li0uR7zt1Y World of Sin Ran Hati]].
* [[http://www.youtube.com/watch?v=8QL0MxOAMoE Prepared to Lose]] should be mentioned too due to being a pretty impacting piece, especially due the scene where it's heard for the first time in-game.