Check out this multi-faith ensemble called Human Revolution Orchestra.
They are performing in Manchester soon:
17.11.2015 Live In concert at Royal Northern College of Music, Manchester featuring Robin Eubanks
On their website they say:
Based on a Buddhist concept of Itai Doshin (many in body, one in spirit) the ensemble seeks to create the type of unity which is not a mechanical uniformity. Rather, it is a unity that has at its heart respect for the diverse and unique qualities of each individual. We treasure, and work to bring the best out of each other.