Theodor Fröhlich Piano Quartet, Scherzo -- Really by Fröhlich?

[Double-A]

Fröhlich killed himself at the age of 33.  And he was no Wunderkind--at least not one that was trained early like Mendelssohn.  So his career was short.  If memory serves all four quartets date to 1825 or 26, the c-minor (which I have never seen nor heard so far) possibly somewhat later.

Still, 10 years make a difference, especially early in a career, don't they.

[eschiss1]

the C minor is from 1832 acc to the notes of the Swiss Music recording but the other two on that recording on from his Berlin years (late 1820s).

[Double-A]

The autographs are dated at the end of the Finale:  f-minor May 1826, g-minor Sept. 1826.

The c-minor quartet has not been digitized (as yet).

[eschiss1]

You mean the performing materials I presume- recordings have been "digitized " and released in a restricted fashion. As mentioned my info was from the program notes to one such, hopefully reliable...

[Double-A]

Digitized:  Yes, I mean the works in Fröhlich's handwriting, mostly scores but also parts sometimes.  They are always meticulously dated; every movement in a longer work has date entered at the end.