About 150 junior high and high school boys will participate in the Fourth Annual Young Men in Harmony Music Festival at 7 p.m. Tuesday in the Grand Ballroom of the Martin Luther King Jr. University Union.

The Young Men in Harmony program is designed to reach out to local schools and encourage proper vocal production and technique. It also aims to offer youth a chance to help preserve the American tradition of barbershop quartet singing, a press release stated.

The festival is an all-day affair, beginning with mass chorus rehearsals in the morning and continuing in the afternoon, which includes one-on-one coaching from any student quartets that may attend, a press release stated.

Throughout the day, the boys will learn about vocal production and technique as well as the art and craft of the barbershop style of singing from trained staff on hand, a press release stated.

The boys will perform their festival songs at 7 p.m. in the Grand Ballroom. Also appearing in the show will be a featured quartet from the Bloomington and Coles County chapters. The headliner group will be the 2001 Collegiate a Capella Grand Champions, Chapter 6, from Millikin University in Decatur, a press release stated.

The event is free and open to the public.