The definitive listing of Mahler's concert programs was for many years Knud Martner's out-of-print and hard-to-get German book "Gustav Mahler im Konzertsaal" (1985). The Kaplan Foundation published Martner's second edition of this reference work in the fall of 2010, revised and expanded. This newer edition, in English, is entitled "Mahler's Concerts" and contains historical notes for each concert, listings of opus numbers, keys and soloists, names of orchestras and halls, references to reviews, printed programs, and listings for concerts which Mahler accompanied at the piano. AMAZON .