WATERTOWN â Last year was the year that the music died for the Disabled Persons Action Organization. For the first time in more than 40 years, DPAO was unable to hold its annual concert series as the COVID-19 pandemic and state-related restrictions made such gatherings impossible. But it was more than about fans missing the music of some of the top entertainers in the country. DPAO itself took a hit. Funding for programs that the concerts provided for the nonprofit evaporated. Proceeds from the DPAO Annual Summer Concert Series are received by the DPAO Foundation, which then provides funding for various DPAO programs and services.