You gotta love these creative puns for apps. Regardless, this is one of the most helpful apps you can ever have for this purpose.
So, how “useful” can such an app like Qello can be? Well, for one, it allows you to stream thousands of hours of exclusive concert footage from some of the more popular musical acts of the day. It’s practically an audio completionist’s dream app for this purpose, and it’s also one which happens to work very well for its functions. And the fact that there’s an ongoing streaming concert channel by the time you start the app is just icing on the cake!