Keen & Anne-Marie's Wedding at Shangri-La Hotel, Tower Ballroom + All Performances, + Weddings, SQ - Weddings, String Quartet Date: 6th September 2015 Venue: Shangri-La Hotel Client: Keen & Anne-Marie Esta Quartet by VETTA, our all-female string quartet was engaged to provide live music for the march-ins, and as background music for the evening.