Giving Voice If youâre more of an audiophile type, we have you covered. Houston Grand Opera is streaming a live performance of Giving Voice: Lawrence Brownlee and Friends Sing Opera, Gospel, and Standards Friday night. The group, spearheaded by tenor Lawrence Brownlee, is an all-Black singing group composed of HGO alumna, HGO studio artists, and other artists who embrace the importance of celebrating diverse voices. In case you didnât know, Giving Voice sold out at Wortham Theater last year, so this free event is kind of a big deal. However, if you are unable to watch the live performance Friday, on-demand viewings of the performance are available on HGOâs website through February 21.