|Genre Categories||; ;; ; ;|
|Work Title||Piano Trio|
|Opus/Catalogue NumberOp./Cat. No.||Op.21|
|I-Catalogue NumberI-Cat. No.||IEK 5|
|First Performance.||1892 May at latest|
|Composer Time PeriodComp. Period||Romantic|
|Instrumentation||Violin, Viola, Piano|
doesn't show up in HMB pre-1901 apparently, and only as a  in a library entry (and there is no way to know why that library is guessing the score was published in that year.) (Appears in Worldcat twice, the other entry with "19??".) So 1892 must have a ? attached to it pending further information. The plate number is in the right area (9457), at least. Also a performance is reported from May 10 1892 (in the June 1 1892 Musical Times).