Oh, hell yeah! That’s one of the things I think is so marvelous about this fan base - there is such an abundance of incredibly talented people, including when it comes to music. Not only do people make fantastic remixes, but there are also those making original compositions as well!
Seventh Element makes this amazing, 80’s retro-sounding synth music that is just fantastic.
When it comes to remixes, JackleApp has done some great work, including one of my all-time favorite remixes, "Coolness that Defies Gravity". Bronytech is another good one - I love their "Art of the Dress" remix in particular (always makes me dance in my seat). Psycosis is another of my favorites - his mash-ups are just perfect, one of my favorites being “Flimflamdro”. There’s also The Living Tombstone (also creates original music as well), Eurobeat Brony, Silva Hound, Sim Gretina, PonyFireStone, and F3nning (I unapologetically love “Giggle at the Ghosties (Glue Factory Remix)”).
I’m sure I’m probably forgetting people, and I’m super sorry, but it’s 2:31 a.m., and my brain isn’t running on all cylinders at this time in the morning.