That’s a great list @axillaryrain! thanks for taking the time to list them all. It looks like you’ve had a real good look through the sets in the players which is fantastic.
Did you know that you can place all of the sets that you’ve listed into a campaign, which means that the column on the left of the player would only show the sets that you want to use in your game/session. Full details of how to build a campaign can be found here
You can also share campaigns with other users of the app, just hit ‘share this campaign’ in the campaign manager and then paste the ULR into a forum post in the Campaigns section.
For scenes like Abbey of Saint Markovia you can actually create your own moods. You can build them in either one of the soundsets that your using (Bell monk Temple or Abandoned Asylum) or you can build them in the Custom Moods soundset. That way when it comes to your game you only need to hit one button to start or stop the mood, just like any of the prebuilt ones. Details on building moods can be found Here
I know some people are already working on community content soundsets which tie in with several D&D campaigns. So if you have a Supersyrin subscription then you should hopefully see those appearing soon. With the Creator you will also be able to edit and tailor those as well as build your own soundsets. There is also lots of new Syrinscape content regularly released so I’m sure that there will be much more that can be added to the list
If you need any help or advice with anything feel free to check out the Pro tips section or ask on here