The Twin Cities Organ Concert Series’ 11th season concludes with a Bach Ascension Festival at 4 p.m. Sunday, May 20, at Trinity Lutheran Church, corner of Market and Pearl streets, St. Joseph.

Guest conductor Jonathan Busarow will lead a 14-member orchestra plus harpsichord, four vocal soloists and the 26-member St. Joseph Bach Corale in a performance of two J.S. Bach Cantatas.

Presenting larger-scale programming is a goal of the Twin Cities Organ Concert Series to expand its offerings, audiences and collaboration with other talented instrumentalists in the area.

There is no admission, but a freewill offering will be taken.

Visit tcorganconcerts.org or call Nicole Busarow at (269) 983-5000 for more information.