First and only reprint of rare 1864 edition of Brahms’s own piano four-hands arrangement of his great Piano Concerto No. 1 in D Minor, Op. 15. Complete reworking of the concerto as piano duet with a number of variants and revisions—Brahms’s final version of the work. Indispensable for all Brahms scholars and performers. Introduction by Ralph Neiweem and Claire Aebersold.