The second of Franz Kleinheinz’s two arrangements was of Beethoven’s Opus 8 Serenade for String Trio (Day 89), which Kleinheinz arranged for viola and piano. This was published as Opus 42 under the name Notturno for Fortepiano and Viola.
After Beethoven had instructed his music publisher “do not dare to state in writing that I have arranged” the Opus 41 and 42 works, here's how Opus 42 was published. Only the small print indicates that it’s an arrangement “reviewed by the author.”
#Beethoven250 Day 169
Notturno for Viola and Piano in D Major (Opus 42), 1803
An isolation video made last month by Duo Mattu-Oliviero. Each of the six movements is a separate video assembled in a playlist.
https://www.youtube.com/playlist?list=PLXGBW_8BAtuJm3WWTd57CkeA1mrFBMxva
Perhaps the biggest mystery of the Opus 42 arrangement of Beethoven’s Opus 8 Serenade is the name change to “Notturno.” What kind of a nocturne begins with a military march?