A jazz trio led by UNI junior David Donald will open the “Jazz in Seerley” event in Seerley Park on Sunday, September 21. “The David Donald Trio,” will begin at 4 p.m. They will open for the Iowa City-based headliner Blake Shaw's Big(ish) Band, which will perform from 5:00 - 7:00 p.m.  For event details visit the Jazz in Seerley Facebook page .