Further down the page is a discussion about music in anime and what different songs mean to different people. I'd like to look at a slightly different perspective about music in anime. What show is most impacted by the music that's a part of it? For me the most obvious choice is Initial D. Between the music of the engines and the jPop music that defines the show I can't think of any other show that music has had a greater impact on. That includes some shows about music! The music goes perfectly with generating energy and excitement for the battles.
I think Hajime no Ippo could probably strike a few good notes as well. I'm thinking in particular of some of the music that played in Ippo's second fight with Sendo.
What shows come to your mind when you think about what impact the music has had on the show?