So, today I got an android app that plays chiptunes, i.e. SID (for Commodore 64), NSF (for Nintendo Entertainment System / Famicom), SPC (for Super Nintendo / Super Famicom) etc.

Downloaded a fair number of chiptunes, made a "favs" playlist. And then I plugged the android phone into the stereo system. It is so very nice to hear neat old C64 stylings through the home stereo. :D