Alexa can build Amazon Music playlists for you
 

Amazon announced today that Amazon Music listeners will now be able to ask Alexa to make a playlist through their Alexa-enabled devices. Commands like "Alexa, add this to my playlist" and "Alexa, create a new playlist" can be used and users can ask t...

https://www.engadget.com/2018/02/08/...usic-playlist/