Great Music on Sundays @5 presents “Music Without Borders” on Sunday, Aug. 8, 5 p.m. John Thomas will be joined by Ken Field, Justin Torrellas, Frederick Jodry, Mozelle, and others for gospel hymns, meditative improvisations, and a performance on the Unitarian Universalist Meeting House’s 1850 Hammond tracker organ. Visit ptownmusic.com to watch or make a donation.