Barry,
Could it actually be the M4, and not the already released M1?
Pentatone Classics has this on their site:
http://www.pentatonemusic.com/pagsalg/linker5.html#NEW Vonk Legacy
(Normal cd) Mozart / Beethoven
Symphony No.40 in G minor, K.550
Symphony in A major, Op.92
Saint Louis Symphony Orchestra
Hans Vonk
NEW Vonk Legacy
(Normal cd) Mahler
Symphony No.4 in G major
Saint Louis Symphony Orchestra
Hans Vonk
NEW Vonk Legacy
(Normal cd) Fauré / Schoenberg
Suite from Pelléas et Mélisande, Op.80
Pelléas und Mélisande, Op.5
Saint Louis Symphony Orchestra
Hans Vonk
NEW Vonk Legacy
(Normal cd) Tchaikovsky
Romeo and Juliet - Symphony No.4 in F minor, Op.36
Saint Louis Symphony Orchestra
Hans Vonk
I'm not too psyched about the other releases, but I will get the Fourth. It was Vonk's last concert as music director. At the time, it seemed like it was a great concert. We'll see if that holds up.