That's neat. I hadn't heard it before played on trombone, only cello. I plugged his name into youtube.com and came up with quite a few of his but not The Swan. I then put his name in along with the title and came up with Michel Becquet doing it. He did a nice job. Really beautiful.
It is a little high for me at the infrequency that I play so I wrote it down to Eb along with the piano part now the high note is a Bb and I can reach it fine.