Aribert Reimann, Konzert für Klavier und 19 Spieler / Engführung für Tenor und Klavier (side A)

This 1974 LP collects two relatively dissimilar pieces by Aribert Reimann.  Side A contains an instrumental piece for a sizable chamber group, while side B is a duo piece for vocal and piano.  Both pieces feature a piano defining the structure and tonal evolution, and both pieces use a complex, modern approach to tonality.  "Konzert für Klavier und 19 Spieler" surrounds the piano with drastic dynamics from the chamber group.  The textural variety and exaggerated use of dynamics fit nicely with the contemporary tonality of the piano part, to create a contemporary and inventive piece.  The traditional operatic vocals on "Engführung für Tenor und Klavier", which perform as a duo with the piano, pull the piece into a more traditional territory.  The structural and tonal innovations clash with the arrangement and the texture of the voice.  The recording here is remarkable, with impressive details of both the instruments and space of the room — the close-mics never seem exaggerated, and they blend perfectly with the room.  The simple, modern cover design is part of a uniform series, so it has no direct relationship with the pieces here.