Plex: Hands-free music experience

Get your music in Plex and enjoy a hands-free music experience with Alexa. Listen to your entire collection, play your own radio stations, and do it without lifting a finger. Whether you want to play a legendary album or a mix from an artist you just love, Plex makes it easy. And, with Amazon Music Storage shutting down in the near future, Plex is the easiest way to have access to your whole library of tunes.

REF: https://www.plex.tv/ad/alexa/