The Boston Landmarks Orchestra has received $100,000 from the Cummings Foundation to support the orchestra’s Music and Memory program of performances in assisted living centers that specialize in care for patients with memory loss and dementia. “This grant is truly transformational for our Music and Memory program and we can’t wait to start working with additional communities,” said Mary Deissler, Boston Landmark’s co-executive director. The Cummings $25 million grant program supports Massachusetts nonprofits based in and primarily serving Middlesex, Essex, and Suffolk counties. The Cummings Foundation is the philanthropic affiliate of Cummings Properties, a commercial real estate firm based in Woburn, Massachusetts. The orchestra is one of 140 nonprofits to receive grants through the program; it will receive $100,000 over three years. This year’s grant recipients represent a wide variety of causes, including food insecurity, immigrant and refugee services, social justice, education, and mental health services. The Boston Landmarks Orchestra’s annual free Wednesday evening concert series at Boston’s Hatch Shell on the Esplanade this year takes place from July 20 to August 24.