Men of Worth is the music duo of Donnie MacDonald and James Keigher. They bring their talent and authentic Scottish and Irish musical heritage to Valhalla’s Boathouse Theatre on the South Shore on Aug. 30 at 7:30pm.

Several of MacDonald’s songs come from his mother’s poetry and from Hebridean crofters’ airs.

The musicians, who met in California in 1985, each play a handful of instruments, among them mandolin, guitar, mandocello, banjo, concertina and bodhran (a handheld drum).

Tickets can be purchased by calling (530) 541.4975. Prices are $18 for adults, and $15 for children online. Advanced tickets are recommended.