According to "H.F." in The Musical Times writing posthumously (April 1 1903, volume 44, page 268; in the "Answers to Correspondents" section), the following were published- also a 3rd symphony in G , a sonata for piano duet op.5, and various works for voice and for piano solo. Eric 15:41, 1 September 2011 (UTC) (actually, some accounts have "after attempting a symphony in G, he appears to have broken down" (emphasis mine)- I wonder then. published? finished even?) - further note - HMB says op5 is actually a cello sonata, from 1854 published by Bahn of Berlin. op.1 is a piano trio, op.7 a string quartet.