This might be a big request, but I figured it's worth throwing out there:
Something that would be a huge addition is a Spotify integration. We use Sound Show for comedy shows (improv and sketch), and we find ourselves switching between Spotify and Sound Show frequently. If there was a way to cut down on that, it would greatly improve our workflow. We mainly use Spotify for pre & post show music playlists, and for improv scenes that require a very specific song.
I'm not sure how helpful it is, but there's a free open source Unity plug-in for Spotify already:
https://assetstore.unity.com/packages/tools/integration/s4u-automatic-spotify-integration-129028
There's a few different ways this could be implemented. A full interface (where you can search for and select songs) would be the most robust version (and would be great for finding specific music for inprov scenes). But even a simple player (with just play/pause and volume) would be incredibly helpful. And it would be super cool if we could crossfireade from Spotify to a SoundShow Sound (i.e. we have a pre-show playlist playing in Spotify, and then we crossfade in SoundShow to a specify sound button we've set up in SoundShow)
Thanks for considering it!