by medoc92 » 31 Jan 2016, 18:36
This thread is very old, but, for the record: some mpd versions have trouble playing aiff files through HTTP (which is what happens when the tracks are added through upmpdcli). The solution is to upgrade to a recent version (0.19.xx), and if this is not enough, configure it without libaudiofile, which is usually the source of the problem (and is redundant with other better-behaved input processors).