Orchestras and Concert Halls around the country are hosting concerts and other tributes to Martin Luther King, Jr. this month, and this Saturday (1/18 at 7 pm) A Tempo will highlight two of them. Host Rachel Katz will speak with multi-genre musician Damien Sneed, who is bringing his production of "We Shall Overcome: A Celebration of Martin Luther King, Jr." to Philadelphia's Annenberg Center for the Performing Arts Friday Jan. 17 as part of its North American tour, and also with composer and drummer Dr. Mark Lomax II, whose Suite from his work 400: An Afrikan Epic, will be featured during the Cleveland Orchestra's Free Community Open House Monday Jan. 20. This week's A Tempo also includes an interview with Sandy Jones, Manager of Education and Family Concerts at the Cleveland Orchestra about the Open House.