 He also performed an all-Verdi program for RAI in Italy.Alexander Frey was the first organist ever to perform an entire symphony of Gustav Mahler as a solo work for organ.This historic achievement resulted in Frey's live performance of the organ transcription Mahler's Symphony #5 (transcribed by Jerry Kinsella) being cited as one of seven performances listed as "the most important organ-related events of the 20th century" by "The American Organist" magazine.