Add user control for adding more variation to automatically generated playlists

[Napotronix]

Idea:

I find that the automatically generated playlists like 'daily mix' etc. tend to often pick from a rather predictable and small pool of tracks. I think it would be great to have some control in the preferences where you can set how adventurous you want your automatic playlist song selection picks to be. A slider for example, from 'safe' to 'very adventurous'

With higher values:

- You hear more different songs from the artists instead of always the same few evergreens

- The pool of artists picked from is increased by adding more lesser known artists and/or artists from a different but compatible genre.

- More songs are added to the pool by cross referencing labels, producers and (former) band members.

The desired/expected effect:

The automatically generated playlists become far more interesting and less stale. The chance of hearing new songs and artists you might like increases dramatically. For people like me who get bored by always hearing the same music but are too lazy to actively educate the app it would be a great solution.

But what if I don't like it?

By offering attenuation through a slider, people can set the amount of adventure to taste. This reduces the risk of the feature feeling pushed on the user (you can just leave it at 0) or being too drastic (if it only had an on/off option).