[sufue]

I originally posed this question in the Prime Day thread, where there was a post yesterday about the Amazon Echo 2 on sale, but I didn't get any replies. I actually think this thread is probably a better fit, so I'm trying again here, in anticipation that perhaps Echo speakers will go on sale again on Prime Day(s), and I might want to buy a couple.

Here's the (long-winded) question:

I'm really uninformed on how Amazon Music works, but I do remember seeing a bunch of discussion a while back when Amazon quit allowing people to upload and store more than a few of their own songs.

Since you can no longer store your own music on Amazon (I have way more songs than the 200 or 250 or whatever the limit is), is there any other way to play your own music through Alexa/Echo? Or can you only play the stuff you have bought from Amazon (or have access via Prime Music or Amazon Music Unlimited)? I did see that the Echo can also work with some other streaming services too, but I want to play my own music.

And if you can't play your own music through Alexa/Echo, then I assume you can do it through Bluetooth? But that wouldn't be any different than streaming to any one of the gazillion other Bluetooth speakers I own ??? And presumably I couldn't stream to multiple Echos to get the "whole home" thing?

Thanks in advance...