Canadians Tegan and Sara have morphed from a folk-pop duo to more synth pop through the years — and their rabid fans have followed right along. These songwriters know how to craft lovely, mature songs about personal relationships, and the Grammy-nominated pair are recognized as passionate advocates for the LGBT community. The band is still touring behind its 2015 release, “Love You to Death” — released on Neil Young’s label, Vapor Records through Warner Bros. — which was critically acclaimed for its fine songwriting and buoyant pop beauty. Still want that summer feeling as we head toward winter? Check out these ladies at the National on Wednesday, Nov. 9, with doors at 7:30 p.m. Georgia’s Mackenize Scott, known better as Torres, opens the show with highly personal, hushed indie folk strumming. thenationalva.com.