Tonight’s recital with guest Ko-ichiro Yamamoto and Chiao-Wen Cheng was a massive success. The recital hall was filled to capacity and Mr. Yamamoto received a very warm response with several curtain calls. He responded in kind with two encores.
Thank you, Ko-ichiro, for coming to the University of Iowa and making the first in our series of trombone recitals a massive success!
University of Iowa Trombone Studio 
What happened to the master class that was scheduled
for 4 pm on Tuesday?
There was never a scheduled 4:00 masterclass for Ko-ichiro, but there are for some of the other artists. Sorry for the confusion.
https://iowatrombones.com/guest-artists/