MORRISTOWN — There will be a concert featuring the duo of Mary Ann Casale and Andy VanDuyne on Monday at 7 p.m. in Chapman Park. Andy has been performing music professionally for over 45 years. His principal instruments are guitar and keyboards, and he is also a singer. Mary Ann has performed throughout the Adirondacks and Northern New York, and her album “Running Out of Time” was released earlier this year. The concert is made possible in part by the St. Lawrence County Arts Council with funds from the New York State Council on the Arts with the support of Governor Andrew Cuomo and the New York State Legislature. In case of rain, the concert will be held in the Gateway Museum.