Loosely based on Jerry Silverman’s bawdy classic of the same name, Cameron Cabot and Nathan Maslyk's The Dirty Songbook features original tunes with "a healthy sprinkling of world renowned 'dirty' songs." A piano, bass, and drum set will accompany the duo. Performances take place tonight and tomorrow night at 8 p.m. at Kennedy's Theatre. Tickets are $24. (Niesel)