Gladdon

You can ask the CBC and/or Sony. They have a better version, but I wouldn't hold my breath since they've never published it despite having it all this time.

Speaking of Gould, I happen to have a previously unpublished recording of him playing his own composition "Suite for Twelfth Night". This might seem like an odd way of sharing it, but I've been putting it off for a long time because I thought it would be properly published at some point. I now realize it's never going to happen unless I do it myself, so here it goes: https://gofile.io/d/f5ORYZ

If anyone wants to mirror it, that would be nice.