In case anyone is interested, or doesn't know. You should be able to get the Nightingale 1.12.1 (the one linked from the home page) to work on Linux Mint 18 (and I assume it would work on Ubuntu or any other distro that is based on Ubuntu). I had to from install gstreamer0.10-fluendo-mp3 from http://packages.ubuntu.com/trusty/gstrea...luendo-mp3 but I managed to get Nightingale to play mp3 files, although some files have tags that can't be read.
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