Sumner has designed extensively for regional theatre, opera, ballet and Broadway; highlights include: the world premiere of a three act ballet “Shim Chung” - selected to represent Korea as part of the 1988 Olympics, the world premiere of Michael Cristofer's award winning play "Amazing Grace starring Marsha Mason" and the American Premiere of the Willy Russell's hit musical “Blood Brothers". Sumner designed the popular musical, “Funny Girl, produced by Joop Van Den Ende Productions in the Netherlands, directed by Chet Walker; and back in the US, designed a national tour of “The Music Man”. In southern Europe, Sumner designed “Les Femmes” and "City Lights", both "Vegas styled" spectaculars, at Monte Carlo’s famed SportingClub. In the late 90's, Mr. Sumner, was invited to accompany director/former Spanish ambassador, Tomas-Rodriguez-Pantoja, to Spain, to meet the gypsies of Andalucia, and to experience first hand their music, dance, and culture. That extended, sun drenched, journey culminated with the Broadway show “Gypsy Passion”.