The Derk and Dirk Show on The Hear and Now, 10 p.m., Thursday, April 18

It’s another installment of the approximately annual Derk and Dirk Show, as singer-songwriter Dirk Hamilton joins host Derk Richardson in the KPFA studio. Dirk, accompanying himself on acoustic guitar, will sing several songs from a deep repertoire that goes back more than 40 years (to such albums as Meet Me at the Crux and Thug of Love) and gets updated every year (his most recent release is the Dirk Hamilton Band Live at the Palms). He plays The Back Room in Berkeley on Friday, April 19.

In the second hour, composer JAB Dlamini will be in the studio to share his music–his compositions will be played by the Dave Parker Sextet on Saturday at Bird and Becket Books and Records in San Francisco–and talk about his work as founder and director of Empowering Lives through Music.