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Official Description

*** WARNING ***
This is only the license to unlock all of Inline Music Player features.

*** NOW THE UNLOCKER IS FOR FREE, ENJOY! ***

You need to install Inline Music Player first.
https://play.google.com/store/apps/details?id=com.inline.music.player.demo


Inline Music Player is a new, innovative and lightweight media player based on the popular player foobar2000.
Inline Music Player has been developed as an alternative to popular music players that have no full control of your playlists.
Thanks to the grouping feature, it provides fast builiding of your music collection, just the way you want.
Enjoy the highest sound quality, create your own playlists and all that with the minimum consumption of your battery.