The Bluegrass Hawai'i Traditional & Bluegrass Music Society has "Pickin' In The Park" jam sessions scheduled Sept. 21 and Oct. 18 at Thomas Square and Kapi'olani Park Area No. 4 near the tennis courts on Kalakaua Avenue, respectively.

The Thomas Square jam is from 1 to 5 p.m. and the Kapi'olani Park event from 11 a.m. to 5 p.m.

There is no charge and the public is invited to listen or join in.

"Pickin' In The Park" features musicians who play unplugged traditional instruments, and enjoy acoustic bluegrass, mountain, roots, traditional country, Hawaiian, Americana, folk, Western, Celtic and Irish music.

Tips for new jammers may be found at bluegrasshawaii.com/events.html.

For information, call 808-206-3459.