Computer game music can sometimes rival the production values and emotional impact of feature film soundtracks, often being written by professional film score composers, as is the case with BioWare's Mass Effect 3.

Originally composed by Clint Mansell (former member of 'Pop Will Eat Itself' turned film score composer), this brilliantly played iPad arrangement by YouTube user billkramme (creative Bill Kramme) uses the new orchestral/strings Smart Instrument in GarageBand for iOS 1.2 to great effect.

We were impressed at how great this sounded, what do you think?