Josten Library’s Mezzanine hosts a pre-tour send-off serenade by the Smith College Chamber Choir ahead of their spring break tour of Sicily. Themed “Songs of the World,” the tour offers music from Japan, Italy, and the Czech Republic, among many other places. While in Sicily, they’ll also sing with Italian choirs, including a performance of Rossini’s Petite Messe Solennelle. This is music for soaring rafters — and Josten’s Mezzanine fits the bill. Free and open to all.