I have converted all my CDs to FLAC and I mostly listen to my music collection in stereo speakers instead of headphones because I find the sound more natural. I have built my sound system around the moOde audio software.

It depends on what matter to you. I use a GNU/Linux distribution and I call it that such because I think the project deserves to be better known. I say FLOSS rather than FOSS because I value freedom.

Actually it might be the opposite, without the GNU initiative, Linus may not have found any interest in developing the Linux kernel. Without the GPL license, the efforts of the GNU community would not have been spent on Linux.

You can be root on GNU/Linux, you cannot on Windows or any other nasty proprietary OS.

As far as I'm concerned, on an AOSP device, a good client should be available in the F-Droid repository.