In the words of rising star Spencer Day, nothing so perfect as summer can last. Lucky for us, the singer has dedicated an evening of his summer to making ours a little more perfect. The singer-songwriter boasts two songs on the Billboard Top 100 chart; has opened for Rufus Wainwright; and his soft piano accompaniment dances smoothly under jazzy, poetic lyrics, telling not only the story of the songs but of his extensive experience in the music world. If you haven’t heard his beautiful song “Last Train to New Jersey,” there’s one way to remedy that problem: see him on Thursday, June 23, at the Napa Valley Opera House. 1030 Main St., Napa. 8pm. $22–$30. 707.226.7372.