I've no way of knowing whether the composer Heitor Villa-Lobos was fond of flying across the exotic and pre-slum glory of his native Rio de Janeiro in a hot-air balloon. I like to think so, if for no other reason than that's the only source of inspiration I can imagine for his spellbinding and lovely Aria from Bachianas Brasilieras No. 5 for Cello and Guitar.

This is just one of the similarly evocative pieces that will be performed Saturday and Sunday in Old Lyme's First Congregational Church at the latest presentations from Musical Masterworks. Guitarist Colin Davin and violinist Tessa Lark will join MM creative director and cellist Edward Arron for a perfectly vernal program that also includes Bach's Prelude, Fugue and Allegro for Solo Guitar, BWV 998; Falla's Suite Popular Española for Violin and Guitar; Gnattali's Sonata for Cello and Guitar; and Piazzolla's Histoire du Tango for Violin and Guitar.

You're right if, like Arron, you believe it's more than OK for a guitar to pop up now and again at chamber music concerts. These should be amazing recitals, and the interplay between Arron, Lark and Davin will blur your vision — in a good way (and not like when you go to the optometrist and he puts that sauce in your eyes that means you have to wear those odd cardboard sunglasses for several hours).

Musical Masterworks, 5 p.m. Saturday and 3 p.m. Sunday, First Congregational Church of Old Lyme, 2 Ferry Road; $40 for adults, $5 for students; 860-434-2252, www.musicalmasterworks.org.