Grete Wiesenthal, a ballet-trained Viennese dancer, made the waltz modern and a vehicle for solo expression.Grete Wiesenthal, a ballet-trained Viennese dancer, made the waltz modern and a vehicle for solo expression.Read MoreDancing, Quarantine (Life and Culture), Classical Music, Wiesenthal, Grete, Vienna State Opera, waltz, Content Type: Personal Profile, Austria, Vienna (Austria), Hofburg Silvesterball