I agree with you about sound clips when it comes to this music.
It's fullness comes from the way the pieces are fully constructed.
Based on your interest in Hemingway, Braxton and Dutch jazz, I would
definitely recommend these discs to you! I have my biases here
because this is music that I grew up with - driving my family CrAzY (except for my mother).
My mission, beginning in the early 70's, was to get my hands on
every Nessa and ICP LP that I could and I'll forever be grateful
to these guys for doing these recordings
(and to Rose and Hegewisch Records and Earl McGhee, and Saul Smaizys, etc).