The Devil Mountain Chorus of Walnut Creek performs a show titled “Harmony Blooms” which includes songs such as ‘Almost in Like Being in Love,” “Paper Moon,” “Till There Was You” and much more. The show also features quartet performances by Delta Dons, Upside Sounds, Only You and Rossmoor Residents and Friends Quartet. Organized in 1972, the 30-member men’s chorus are part of the Society for the Preservation and Encouragement of Barbershop Quartet Singing in America, a national non-profit organization with hundreds of chapters and thousands of members.