AC 3 is a good line up of tracks that bridge from classic to techno and acid jazz,I recomend bravado, Free verse, blue braze,on statiloid,artificial sky and administrator.these tracks are mostly upbeat and make great thinking music. Armored Core 4's OST is amazing as well.If it was on this site I would strongly recomend "panther", "Grid Room" and others as well,when and if AC4's OST is uploaded I will write a review. Chees and Muah!