FredM wrote "Is there a possibility of having a web page somewhere, on which a list can be kept, with links?"
Fred - to an extent this is what I've done. My playlists (over 90) are "public" on my channel page, and are categorised by both thereminist and make of theremin. So, if you want to listen to Lydia Kavina, or hear what a Tak E-Winds theremin sounds like ... simply click!
I do a theremin search at YT once every day or two, checking for new additions ... so, if there's a new Armen Ra Theremin video, for example, I add it to the appropriate playlist as soon as possible. I'll continue to do this.
To save people having to visit my channel, I also prepared a short video with many (but not all) of these playlists linked to by annotations. The idea was that if someone wants access to these links regularly to check for updates they can "favourite" the link-filled video so all the links are then accessible by playing it on their own channel page. It seemed like a good idea at the time, but I've hesitated to mention this here, as I don't want to be accused of ego-stroking or self-promotion, even though the video is to promote ALL thereminists and theremins I've found at YT.
I don't much like the idea of an actual "official" page or chain e-mail, especially one that gives ratings. I think Youtube's own rating system is sufficient. Fred, you mentioned a few pages back that you "still panic when pasting a link to your own music". Whenever I post a video I feel physically sick, and almost dread anyone noticing it. Chain e-mails or such would completely and utterly inhibit me ... and terrify me even more than those scary people with white faces and gloves!