Rarity is afraid of your dubstep.
Speaking of dubstep (I think), here's some instrumentals! Pony space, an orchestral cover of a MandoPony song, and a piano improvisation piece. Dig in.
1) DasDeer - Ponies in the horizon
2) A Long Way From Equestria (Orchestral Cover) (Original by MandoPony)
3) Improvisation is Magic