"Carmina Chromatico" is the title of the concert at 7:30 p.m. Friday by Les Canards Chantants at Glencairn Museum in Bryn Athyn. Best to just take all of these monikers on faith because they lose so much in the translation. Musically alert and always enterprising with Renaissance-era programs, the Canards are singing music by Gesualdo, de Rore, and Hassler. But if you must know, the program is translated as "Chromatic Poetry," the group is "The Singing Ducks," and the main repertoire item is Sibylline Prophecies by Orlande de Lassus. Information: 267-502-2600 or www.glencairnmuseum.org.    - David Patrick Stearns

Nelson Freire's Bach is both muscular and lithe. In his first all-Bach recording, on Decca, the Brazilian pianist, now 72, doesn't take huge liberties, but the ones he takes are beautifully judged. He gives each of the seven movements of the Partita No. 4 in D Major, BWV 828 a distinct character: grandly expansive, sweetly probing, bright, noble, playful, carefree, and a last movement that shows the drama of shaving the line between chaos and order as finely as possible. These are the joys of Bach's devising, of course, but through phrasing and articulation and careful attention to the gathering and release of energy, Freire heightens expressive possibilities. He makes for a particularly powerful combination with the improvisatory-sounding aspects of the Chromatic Fantasia and Fugue in D Minor, BWV 903, underlining a journey from angst to being lost (at the start of the fugue) to the gradual return to sense and order.
- Peter Dobrin

The divine Midori. The famed violinist sojourns with the Philadelphia Orchestra on Thursday, Friday, and Saturday, playing Beethoven's Violin Concerto. Information: 215-893-1999, www.philorch.org.
- P.D.