Vancouver has the good fortune to have microcosmos, a string quartet, created in 2010.   Their  mandate is playing in small intimate settings. http://www.microcosmosquartet.com/
We hosted them  last evening for a group of 30 guests.   Reactions were clear including:  I'm totally spoiled now for live music"    The engagement and power of such intimate performances is delightfully overwhelming.  
Glad to hear that now NYC also has such opportunities.