Comment 4 for bug 1309063

mpt, bell.ogg is just a short 'bloomp' sound. Playing that in a loop, as one would for an alarm, is an awful noise. :-) Really I don't think many of its sibling sounds were designed to be looped either. Are you sure that's what you want?

I agree that this is a question of the default sound and that allowing alarms to override that is a separate issue.