It should also be noted that Sakura's theme ("I Want You to Know") has lyrics. So hear the totally cool vocal version.
Not to mention the fiendishly new track "Brave or Grave" made for M. Bison in Alpha 3. Combine this with SNK Boss Syndrome and you've got possibly one of the most satisfying defeats in video game boss history.
Alpha 3, along with "Brave or Grave", added a new theme for Dan, which is arguably better than his old one.
Even without the iconic nature of his older themes (especially the Street Fighter II incarnation), even Guile gets a sweet theme when he shows up in the console versions of Alpha 3, despite said theme apparently not even having a name. Except some sources list this as "Wisdom."
Credits. Just credits. Tell us if you don't skip the credits just because of THIS theme.
Sagat vs. Ryu from Street Fighter Alpha 2. The BEST version of Sagat's theme, bar none.
And by what we can hear of his new theme in SSFIV trailer, it's safe to say it Took A Level In Catchy.
Elena's "Beats In My Head." If you didn't already know African Techno would be an awesome combination, here's your proof.
"Psyche Out," Gill's theme from Street Fighter III: 3rd Strike is awesome as well. For a final boss that fancies himself a god-king and can resurrect himself to full life if you're not careful, this fits extremely well. Also, it definitely encompasses the hopelessness of you beating him and how apocalyptic the world would be if you lost to him.
"Killing Moon," Akuma's theme from Street Fighter III: 3rd Strike, could quite possibly be the ultimate fighting game music.
The most epic theme in IV, Gouken's. Of course, it's all subjective.
Bison's remixed theme deserves mention. The heroic intro, the bizarre, techno riff thrown in at 0:13, and the epic way his main theme is introduced all tells you that this song belongs to a man who's very existence is fundamentally WRONG.
The Ryu vs. Akuma rival theme is potentially the most epic version of Ryu's theme to date. It paints a perfect picture of the final battle between the two warriors.
Guile's theme. It's all of the man's grief, depression, and suffering boiled down into audio form.
While Sagat's theme is missing the aggression of his past self, it's perfect for a man who finally realizes that revenge is meaningless and that there should only be honor in the battlefield. The Thai instruments and ambiance works too.
Hakan's theme, unfortunately not as fast-paced and funny as his reveal trailer theme. Still good, though.
On the subject of said trailer, it counts as both a Crowning Music of Awesome and Funny, since (in the words of someone else) you are watching Hakan "violate" most of SF history while a singing Yakko Warner is serenading you.
The credit roll theme. The vanilla SFIV version, though it was also a medley of the themes, just used the actual stage themes mostly unchanged. The Super version, however, keeps them stylistically similar and it flows much better.
There are two remixed versions of "Crowded Street" to go with each twin. Here's Yun's version, which is very fast paced and aggressive, more akin to the New Generation and Third Strike versions of the theme.
And Yang's version. Much slower and calm, comparable to the Second Impact versions of the theme.
Evil Ryu's theme, a Dubstep fusion remix of Ryu and Akuma's themes, representing the corruption of the Satsui no Hadou within Ryu.
Oni's theme, a more evil sounding, techno-metal remix of Akuma's theme.
Street Fighter EX
Say what you want about Street Fighter EX, but you cannot deny that the games had great music. Our hats go off to the composers over at Arika who were genius enough to come up with these tracks. Starting with the themes from EX Plus Alpha/EX3:
An official Street Fighter Tribute Album exists which includes arrangements by famous composers. Most notable of these is Ryu's Theme by no other than Takenobu DAAAAYYYTOOOONAAAAAAA Mitsuyoshi. It must be heard to be believed.
Street Fighter remixes aren't exactly few and far between, but on Youtube, there's quite a few videos of someone named "Lee Kyung Won" playing, among other videogame tunes, classic Street Fighter themes on his guitar. The best are Charlie Nash, Guile, Cammy White, Dan, and Ryu.
Actually, that's the soundtrack that made people interested. The outcome of the SSFIITHDR OST is much better.
Keep in mind some of the songs on the OST are directly taken from earlier entries of the site, and the Blood on the Asphalt album itself. Sexy Trunks (Balrog's theme) was originally uploaded to OC Remix in 2003!