About the players:
The Glass Duo was founded by Anna and Arkadiusz Szafraniec. They are the only glass music group in Poland, one of few professional ensembles worldwide. They have brought their glass music to the stages of many renowned concert halls. By rejecting stereotypes they have enriched the music world with sounds which are subtle, sophisticated and truly unique.
You may read more about them there.
Wow; really, just Wow.