[Feature Request] Filter criteria for songs

[Maxplosion]

For version 2.0+ far away in the future. I would be great to have some kind of a filter where you can specify to ignore songs. Using for example some regex match to ignore tracks with "instrumental" in their title. (for reference something like that was done in the "sonixd" desktop client) Using this those matching tracks would then be omitted when displaying and/or only when playing an album.

[jmshrv]

I could probably fit that in to 0.7 :)