wonderful quality of Schumann.
???????
Just to remind what you are talking about:
This is Schumanns Pianioquintett:
(here my poor little rendering of its Scherzo with Eastwest-Samples from 2008)
Of course Schuman is for all of us a very inspiring ideal when it comes to good chambermusic but to reach "Schumannesque Qualities" - to be realistic - there is Imho in many aspects (harmonic and melodic invention, counterpoint, disposition of the ensemble, architecture, virtuosity and passion) still very very much to do.
I was a bit more reminded in what I would expect of Franz Xaver Mozart (whose Pianoquartet is not bad), or Johann Nepomuk Hummel (whose texture seem to be in many aspects much nearer to MMKA even if there is still enough for instance of brilliance, musical contrast and development what might be still inspiring for MMKA Pianoquintett). But I am sure MMKA's very clean style might be a goiod starting point to develop a chambermusical thinking like those two mentioned late classical composers.