This is a powerful local music player which runs as a packaged app (ie 100% offline). Achshar player is also a background app hence it will keep playing your playlists even after you have closed the app tab or even all the browser windows. It can play any sound that your browser can play. It has been made up over the browser's inbuilt html5 audio player. It groups songs by artists/albums and facilitates playback and dragging on almost every actionable objects.
Full list of features available on app's wiki page:
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I have not been able to update the app lately. I have been locked out. Webstore policies changed and now they require a specific coding technique. The changes required are very extensive and need a lot of time. So I cannot update the app even for small changes until i make the big change. Expect an update soon.