Joe Graveline & Nina Gross to perform at Great Falls Coffeehouse Joe’s original music is accompanied with a guitar style which expands and challenges; folk, pop, and the blues. Nina, a musical artist and poet, brings a special touch to the music with her skilled viola style and vocal talents. Together; they will create a unique musical experience combining guitar, viola and experienced vocals. Doors open at 6:30 pm. ~ Suggested sliding scale donation $6–$15  ~ Free for children. Coffee and refreshments available. Museum open during intermission.  ~   Wheelchair accessible Donations help the Friends of the Discovery Center provide free programming for the public