Maybe not the answer for everyone, but to dispell some
of the swamp gas theories,

I've noticed that if I take a lag spike when singing,
it will lock the song in, and then I can't sing any
song until I get bashed, zone, or log off and back on.
Great thing is, this happened on my healing pulse
while fighting the hermit in S karana. Without be
able to weave he tore me up, I couldn't even speed a
way, I even managed to eek out a pettition while
watching my inevitable death. Did a /who gm all,
guess what, no one there. Oh well, that's why we keep
a drum in the bank.