Cavalcade for April 21
"Cavalcade" at 6 p.m. spins new offerings by Ani DiFranco, Waxahatchee, Travis, and Victoria Canal. Also, saluting the musical legacy of Allman Brothers Band cornerstone Dickey Betts, who died on Thursday at 80.
Catch "Cavalcade" on Sundays, 6-9 p.m., on 90.7FM, streaming online, and "Click-a-Cav" in the Archives on demand; choose last week's show, or this week's (after broadcast).