Mark Hierholzer, director of the Fredericksburg Chorale as well as pianist and composer, will improvise on the piano for twelve continuous hours. Well known for his improvisational skills, Hierholzer will do free improvisation. Audience members are welcome to submit ideas to be expressed musically.

Donations will be given to the Fredericksburg Boys and Girls Club. Refreshments will be served. Come and go as you please. This concert is to raise the awareness of the mission of the Fredericksburg Chorale. Mark Hierholzer was born in San Antonio, Texas.

He began studying piano at seven. Composing came soon afterward.

He continued to study piano performance at the University of Texas, San Antonio. He earned a Masters Degree in Piano Performance and Literature from the Eastman School of Music in New York.

Mark now resides in Fredericksburg, Texas with his wife, Rebekah and young daughter, Genevieve. He has four grown children, Aaron, Cassandra, Peter and Thomas, who reside in Austin, Texas.

Besides the Fredericksburg Chorale, Mark is also the director of two German choirs, the Arion Men's choir, established in 1909, and the Hermannson's Mixed choir, established in 1934.
Mark's first love of music is improvisation and composition. He has over twenty published works. He regularly performs concerts of piano and organ improvisation at Musical Offerings.