@DDmUSA wrote:
...
Can any platform offer this? ...
Hi @DDmUSA,
There are platforms that promise such things, but believe me all this is nothing more than lies. If you are able to listen to something, that means it's already downloaded somehow (in spite not in form of classical file). And since downloaded, it's always possible to save it. Yes, it may be difficult for most users, but always possible. 😁 Alphabet, for instance, pretend that you cannot download anything from YouTube; Is this correct?! 😜😀 Better don't rely on!... and this is for relatively well protected service.
@DDmUSA wrote:
... If not, what are my options?
It's matter of your choice. There is no a single correct or single wrong option. Make your decision based on your target group. An option could be song edition with reduced length and/or quality, passed with a regular shared link - distributed as a "preview". Again this can be good or wrong - the choice is yours.
Good luck.
PS: By the way Dropbox has the same pretensions. Don't believe!