DIY mainstay and accomplished pianist Charles Joseph Smith spins a fantastical space odyssey on War of the Martian Ghosts

DIY spaces come and go, but people such as Charles Joseph Smith give the city’s nebulous underground scene a sense of cohesion. Smith, who performs under both his own name and that of his performance-art alter ego, Mr. Forefinger, is a champion of the outre, odd, and endearing.…