This arrangement of the Ride of the Valkyries by Richard Wagner comes from my Easy Arrangements Vol. 2. The piece comes from Die Walküre, one of four musical dramas that make up Wagner's Der Ring des Nibelungen (The Ring of the Nibelung).
These pieces by Wagner are some of my dad's favorite works. Whenever my mom goes out of town he watches them. I remember stopping by his house one day and hearing Wagner blaring. I wasn't even out of my car and I could hear the thump of the bass.