Barenreiter BA9420 - Johannes Brahms Sextet, Op36 in G, Set of Parts. The two string sextets (op. 18 and op. 36 [BA 9420, TP 420]) by Johannes Brahms are amongst the high points of the Romantic string repertoire and some of the most popular chamber music works of all. The new Bärenreiter Urtext editions, edited by Christopher Hogwood, are the first scholarly- critical editions of these much-performed works.