ferret@skunk ~ $ sudo eselect rc restart mpd
Restarting init script
 * Service mpd stopping
 * Service mpd stopped
 * Service mpd starting
ALSA lib pcm_direct.c:224:(make_local_socket) connect failed: /tmp/alsa-dmix-5733-1152554052-594597: No such file or directory
ALSA lib pcm_dmix.c:894:(snd_pcm_dmix_open) unable to connect client
 * Service mpd started

ferret@skunk ~ $ aoss madplay /usr/local/playlists/main/Love\ Is\ Dreaminess.mp3 
MPEG Audio Decoder 0.15.2 (beta) - Copyright  2000-2004 Robert Leslie et al.
audio: /dev/dsp: No such file or directory

ferret@skunk ~ $ strace aoss madplay /usr/local/playlists/main/LOVE\ IS\ DREAMINESS\ \(Long\ Version\).mp3 2>&1 | grep -B10 'dsp: No such'
write(2, "audio: ", 7audio: )                  = 7
open("/usr/share/locale/en_GB.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB/LC_MESSAGES/libc.mo", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=1474, ...}) = 0
mmap2(NULL, 1474, PROT_READ, MAP_PRIVATE, 4, 0) = 0xb7b53000
close(4)                                = 0
open("/usr/share/locale/en.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "/dev/dsp: No such file or direct"..., 36/dev/dsp: No such file or directory

ferret@skunk ~ $