Berta´s acknowledged warmth and musicality have won her the admiration of audiences at major venues worldwide. Among them are, the 92Y, the Weill Recital Hall of Carnegie Hall and the Fredrick P. Rose Hall of Jazz at the Lincoln Center in New York, the South Bank Centre of London, at Shakespeare´s Globe in London as a guest of the grand master, John Williams, the Kennedy Center in Washington D.C., and Flagey Studio 4 in Brussels, where she performed with the Brussels Philharmonic Orchestra for Belgian National Television.