MEHEM is a reinterpretation of the endings of Mass Effect 3, which allows Commander Shepard to survive the final mission, among many other changes. It features custom videos and slides, re-engineered gameflow, original as well as re-arranged voice acting, new music, etc.
This is the new high EMS ending of MEHEM v0.4 with the new original soundtrack, provided by sH0tgUn jUliA.
Sorry this music just plain doesn't work. There's plenty of music from the Extended Cut you can use.
Music is ****. Music was the only major thing I never had problem with in Extended Cut. This track makes everything look like some childish cartoon with Big Bad Robots, it defiles the feeling of victory.
During the installation of the mod, you will be able to choose between this new soundtrack and the old one (known from v0.3 and earlier. So this new OST is completely optional.