Gretna Music has planned upcoming events, which will take place in the Mount Gretna Playhouse, 200 Pennsylvania Ave., Mount Gretna.

Gospel singer Michelle Mayne-Graves' Lifeline Quartet will present two programs on Saturday, July 2. At 11 a.m., during a Gretna Music for Kids performance, the Lifeline Quartet will share why some people believe spirituals included hidden messages to help slaves escape toward freedom in the North on the Underground Railroad. This family-friendly show will have audience participation.

The quartet give a concert of African American spirituals, such as "Wade in the Water" and "I'm on My Way to Canaan's Land," at 7:30 p.m. In honor of the Fourth of July weekend and Mayne-Graves' work with homeless veterans in Los Angeles, this event is free to all active and retired military personnel; when purchasing tickets, they should use the code AMERICA.

Mayne-Graves helped establish New Directions Choir, a choir for formerly homeless veterans that performed on American's Got Talent in 2010. In addition to directing choirs, performing spirituals and helping to coordinate and lead veterans' singing groups, Mayne-Graves supervises a team and works as the RN case manager for housing homeless veterans at the Veterans Affairs in Los Angeles.

The Lifeline Quartet will return on Sunday, July 3, at 10 a.m. The group will team up with the Rev. John Overman to present a gospel worship service that is free and open to everyone.

On July 3 at 7:30 p.m., the Emmy award-winning trio Time for Three will take the stage. Time for Three's music resides at the crossroads of Americana, pop, jazz, and classical music. The group's members are Charles Yang, violin and vocals; Nicolas Kendall, violin and vocals; and Ranaan Meyer, double bass and vocals.

A beer and barbecue event will take place before the Time for Three concert; there is an additional fee. Visit http://www.gretnamusic.org for more details.

Gretna Music's mission is to bring excellent musicians to central Pennsylvania. Established in 1975, primarily as a chamber music festival, the organization now schedules jazz, family shows, and other non-classical offerings during the summer at the Mount Gretna Playhouse. The seating area is covered, as is the stage.

For tickets and more information, call 717-361-1508 or visit the aforementioned website. For the kids' performance, there is a price cap for groups of six or more. Special pricing for evening performances include discounts for people age 18 and under, adults who bring a young person and people ages 19 to 30. Pay-what-you-will options are also available. Call the aforementioned number for details.