Even if we think we can take care of everything ourselves, all of us need a few friends, and this week’s Pipedreams program brings together the king of instruments and a variety of friendly collaborators. Of course, organs have plenty of their own flutes, but one more, blown by lungs rather than bellows, can add so much. We’ll hear also pieces for organ with piano, organ with chamber orchestra, organ and harp - now THAT’s a fine combination - and the great energy-maker organ and brass. Joan DeVee Dixon, Steven Egler, Frances Shelly, Marie-Bernadette Dufourcet, Jon Gillock and others show what a harmonious relationship is all about.