Well for Heaven's Sake - and I do mean Heaven

Not sure what hits your meter  or threshold is for beautiful....voices are so unlike musical instruments of the wood and string and metal kind...I know what can be done there and when blended together an orchestra, band, brass choir, string quartet etc....well its many acting and sounding as one....then there are voices.....not opera solo voices but perfect voices, voices matched to blend with the neighbor....a perfect block of voices...a community....a perfectly matched set...

get out your beauti-o-meter.  calibrate it on this.  these folks are the OMG moment.