"The Serenade op. 41 is based on Beethoven's Opus 25 for flute, violin and viola. Although the version for piano and flute (or violin) did not originate from the composer - but was probably undertaken by the composer Franz Xaver Kleinheinz -, Beethoven did, however, ''look through it and substantially improve some passages'', as he assured his publishers Hoffmeister &amp KŘhnel in September 1803. With the accolade ''revue par l'Auteur'', the arrangement was soon widely disseminated. We are publishing a revised edition of this charming serenade, incorporating the latest scholarly Beethoven research (to date HN 301). It contains new, extensive texts concerning the genesis and source situation."