Back by popular demand, pianist Aidan Scrimgeour, Tufts University class of 2017, leads a jazz trio in its sixth annual live performance of the classic Vince Guaraldi album, “A Charlie Brown Christmas.” The trio features Matt Estabrook on upright bass and PJ Holaday on drums. Proceeds from donations at the event will again support Operation Warm, which provides winter clothing to children in need. The trio has raised nearly $1,000 in the past for Operation Warm.