By Steve Sucato Pittsburgh Ballet Theatre kicks off its 44th season with An Evening of Twyla Tharp, a salute to the irrepressible Emmy- and Tony Award-winning stage and screen choreographer. The Oct. 25-27 program features reprises of two of Tharp’s most popular works. First performed by PBT in 2006, the 35-minute “Nine Sinatra Songs” (1982) has a ballroom setting and features seven couples costumed in gowns and … Continue reading Pittsburgh Ballet opens its season with two modern classics by Twyla Tharp