Mark Hierholzer, local pianist, composer, teacher and choral director will present a concert of piano improvisations on Friday, June 16 at 7:30 at Hill Country Church, 107 East Lower Crabapple. An improvisation is a spontaneously created work. The piece is composed at the instant of performance. These improvisations will be based on scenes, stories and emotions. Hierholzer has his Masters Degree in Piano Performance and Literature from the Eastman School of Music.