Interesting. I tried doing this as normal user and I received the following error:
[bmalone@localhost ~]$ pulseaudio
W: polkit.c: Failed to show grant dialog: Unable to lookup exe for caller
W: polkit.c: PolicyKit responded with 'auth_admin_keep_always'
N: main.c: Called SUID root and real-time/high-priority scheduling was requested in the configuration. However, we lack the necessary priviliges:
N: main.c: We are not in group 'pulse-rt' and PolicyKit refuse to grant us priviliges. Dropping SUID again.
N: main.c: For enabling real-time scheduling please acquire the appropriate PolicyKit priviliges, or become a member of 'pulse-rt', or increase the RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user.
E: main.c: Failed to create '/tmp/pulse-bmalone': Operation not permitted
I then did the same as root with the following output:
[root@localhost bmalone]# pulseaudio
W: main.c: This program is not intended to be run as root (unless --system is specified).
W: pid.c: Stale PID file, overwriting.
ALSA lib control.c:909

snd_ctl_open_noupdate) Invalid CTL front:0
ALSA lib control.c:909

snd_ctl_open_noupdate) Invalid CTL front:0
I then opened another terminal and tried mplayer as normal user, which didn't work (with the same error message). I then logged in as root and did the same, and the song plays....
So my question is, how do I play music without being root?