Some folks might be interested in this story. Back in the late '60s I thought I had a chance to get some foundation money to make classical recordings. My first choice was Jascha Horenstein and set up a meeting with him in Florida where he was conducting the LSO at a festival. We spend a wonderful afternoon in a hotel bar discussing possibilities. We decided to shoot for Mahler 3 which he would be conducting with the LSO a few months later. I still have quotes from the LSO for the necessary sessions. I was ultimately unable to get the funds but Unicorn picked up the ball and recorded it. While discussing other pieces he wanted to record, he mentioned the Roussel symphonies, Dutilleux, Webern and (if the money was restricted to American composers) Ives or Barber. He was most interested in composers with a personal "language".
I still treasure the memories of that afternoon, his rehearsals with the LSO, the 3 concerts we attended and the letter he sent.