Actually this is not a cassette it is a USB/C flash drive. SDF in a ten piece format with Cindy Frank Rutstein, Seth Kibel, Marc Lawrence, Howard Markman, Pete Strobl, Brain Simms, Janet Frenkil, Tobias Hurwitz and Chuck Wiliams came together and performed for over 2 hours in Beth El's Offit Auditorium. SONiA wanted to make sure Terry could experience the concert too so it was paramount they a good recording was made. And that is exactly what Tony Corelli did! Tony engineered the evening live sound and produced this 32 track recording.