Hi, as far as I understand reading the licenses, the standard license allows downloads (of an app) up to 10.000
If you need unlimited downloads you’d have to get a music mass reproduction license or higher for each track
The tracks cannot be delivered as is in your app. That would be akin to redistribution which is a big no-no in the terms. They have to be part of something bigger in scope.
If you add guided meditation voice-overs that would be fine. If the tracks are left as is that becomes slippery ground. In any case, that tracks cannot be made extractable as audio files.
If your use is indeed within the terms, then you’ll need the Music Standard license, or the Mass reproduction, if you expect more than 10 000 downloads.
All tracks follow the same licensing models, so there is no need to filter by license type.