Nice story! You listened Schnittke in school? OK, I only had the basic music lessons, but we only listened to the German standard school music - which is in my memory only "The Moldau" (Vltava) by Smetana. Whatever.
I will listen to your version as well and compare it to mine, which is not commercially released. The work was never released commercially to my knowledge and yes, my recordings lasts 26 minutes. I will check the differences. I like the work very much, therefore I am looking forward to it.
Best,
Tobias