(TrendHunter.com) Harry Yeff created a system dubbed Voice Gems. The artist and vocalist has always had a fascination with the human voice. So much so that he set out to capture the essence of someone's voice... (TrendHunter.com) Harry Yeff created a system dubbed Voice Gems. The artist and vocalist has always had a fascination with the human voice. So much so that he set out to capture the essence of someone's voice...