On Friday, July 15, the Andover Summer Concert Series will present Andover’s own Pete Coolidge (right) and Ross Swain (left) in separate sets. Ross will kick off the evening on the town common at 6 p.m. with a set of piano solos that will include some Scott Joplin ragtime, a waltz or two, a 1930s Fats Waller stride piano piece and a few surprises. Pete will finish off the evening with a set of his signature guitar playing and vocals. Many, if not most of the songs in his set will be his originals, which focus on life and times around Andover. The free outdoor concert will happen, weather permitting. For more info, contact Ross at 207-392-2572.