Hi
You may want to look at WinAmp, I've used it for so many years that I can't remember when I started, but it works really well and has constantly updated through the years.
I love the graphics generating engine that creates a constantly changing video of shapes and colors on the monitor as it plays, based on the sounds. It goes on for hours without repeating the same patterns.
Even after using WinAmp for years I still see new visuals.
I put it on when we have a party, and people do really spend some time watching the patterns, (no Pot involved).
Winamp 5.666 Download It's FREE!
I place all the music I want in a playlist in one folder, and then it's just one step to add the folder to WinAmp as a collection.
I have one playlist that will play for 18 hours, without repeating.
If you set it as the default music player Cortana should open it and play your music when you say, "Hey Cortana, Play my music" and then pause resume and change tracks when you ask her to.
I don't guarantee this since it does't work for my anymore, though it did until I updated to the final version of Windows 10 but it works for my friend.
But that's about Cortana not WinAmp.
Mike