The indefatigable Ethan Iverson gives a thorough, candid, and impassioned assessment of the recorded output of the late Peter Lieberson. I love the (first) Piano Concerto from start to finish—its neglect is baffling. I memorialized my former teacher here…. The Little Opera Theatre of New York is giving a double bill of chamber operas by Gustav Holst: The Wandering Scholar and the Indian-inflected Savitri, one of the more original music-theater works of its time…. The Eclipse Quartet jets in from L.A. to give two shows at Roulette on May 21 and 22: repertory includes the Ruth Crawford Seeger quartet, a Roscoe Mitchell premiere, and the Feldman Piano and String Quartet (with Vicki Ray)…. The formidable Köln outfit Ensemble musikFabrik descends on EMPAC, in Troy NY, on May 13, with a program of Richard Barrett, Claude Vivier, and Cage (his Concert for Piano and Orchestra). They are overdue for an NYC appearance…. Cage's How to Get Started is the focus of a daylong Symphony Space event tomorrow, with PEN authors and randomly selected audience members participating. The same venue hosts a Gertrude's Paris marathon the following day — marvelous literary and musical programming centered on the figure of Miss Stein…. Spring for Music is almost here. A reminder that all tickets are at most $25; you can buy a six-concert pass for $100…. If the Busoni Piano Concerto on May 9 isn't your bag — I revealed my weakness for the piece in a January column — you might check out a simultaneous Ekmeles / AMP New Music event at Columbia's Italian Academy, presenting several Scelsi pieces and a new Gregory Cornelius work alongside the American premiere of Nono's Quando stanno morendo, diario polacco no. 2…. A couple of early-music picks: Pomerium's fortieth-anniversary concert, in the Music Before 1800 series on May 6; and a Sonnambula Spanish-Renaissance program on May 16.