I've always had a thing for instrumental music (which confuses anyone I know offline who's heard me sing) which means I have a thing for New Age and trailer music and soundtracks, not necessarily in that order. But lately, instrumental music is starting to become more modern as people realize, hey, that's awesome! So here's a few recommendations (sorry about linking YouTube videos, but they are for the artists' own channels and, if you really want to, there are ways to download the music from YouTube videos for free):
Lindsey Stirling - Crystallize (dub-step violin)
The Piano Guys - Berlin (everything heard in the song is done with cellos and a kick-drum)
Yami no Matsuei OST - Devil's Trill (metal version of an old and very difficult violin piece)
And, for the fun of it, The Piano Guys - Cello Wars: The Phantom Cellist (because Star Wars medleys are fun and this one's well done)
Lindsey Stirling - Crystallize (dub-step violin)
The Piano Guys - Berlin (everything heard in the song is done with cellos and a kick-drum)
Yami no Matsuei OST - Devil's Trill (metal version of an old and very difficult violin piece)
And, for the fun of it, The Piano Guys - Cello Wars: The Phantom Cellist (because Star Wars medleys are fun and this one's well done)