Soul of the Movement: Meditations on Dr. Martin Luther King Jr. Pre-Festival Appearances Date: Saturday, May 11 Time: 7:30 pm Cost: Donation Location: Community Baptist Church, 1620 Sonoma Ave., Santa Rosa alsoDate: Saturday, May 18 Time: 7:30 pm Cost: $20 Location: Glaser Center547 Mendocino Ave., Santa Rosa  Led by composer, bassist, educator and activist Marcus Shelby, the goal of the choir is to create a group, building on the diverse