This app was mentioned in 1 comment, with an average of 1.00 upvote
I can't follow all your answer. Some of them are good. Some other not.
Have you checked the playlist ? Plus you can make your own. Imagine your with your friends at home throwing a little party. You've your kloud playlist with awesome music video. Just play and let's roll.
You said that music is passive activity (most of the time because dancing is not so passive), i'm ok with that but it's better with video. More is always better.
And about the TOS. It's good to read but since i use Spotify and Soundcloud and other API.
Many website do that like the falled "GrooveShark" and if there were a problem my app would had been rejected from the Play Store :
https://play.google.com/store/apps/details?id=com.ionicframework.kloudmusik886706
You should take time to use it good not like you'll use it for what it is.