Jazz Listings From The New York Times

English: Peter Apfelbaum live at Saalfelden 20...

Source: The New York Times.

Improvisers Chamber Orchestra (Saturday) As its name implies, this large ensemble — an outgrowth of the historic and newly reinvigorated Creative Music Studio, in Woodstock, N.Y. — involves a cohort of improvising musicians in chamberlike accord. The conductor will be Karl Berger, who helped establish the music studio some 45 years ago, and the lineup will include Ingrid Sertso, a poet and fellow founder; Peter Apfelbaum, on tenor saxophone and flute; the trumpeters Steven Bernstein and Graham Haynes; and the drummers Billy Martin and Warren Smith. The concert, at 8:30 p.m., will be preceded by an open rehearsal at 7 p.m. At Greenwich House Music School, 46 Barrow Street, West Village, 212-242-4770, creativemusic.org. (Chinen)

Jacob Sacks and Friends (Wednesday) Mr. Sacks is a pianist of exploratory temperament, drawn to open space and shrewd irresolution. In the second half of this concert, he features his own music for a group with the drummer Dan Weiss and two bassists, Eivind Opsvik and Thomas Morgan. The first half will feature a duo, Mr. Sacks with the vocalist Yoon Sun Choi, performing improvisations as well as standards and original compositions. At 8 p.m., Weill Recital Hall, Carnegie Hall, 212-247-7800, carnegiehall.org. (Chinen)