User blog comment:Koveras Alvane/The Beauty of Mass Effect 2 Ending/@comment-4237253-20130423145834/@comment-1440333-20130424081623

Except Suicide Mission itself only plays during the credits - there are many other music pieces for the actual mission, with Long Walk probably being the best.

Although the lack of music at several points on Earth does make it stand out in contrast, but I really don't think its a bad thing.