I've heard that SDL mixer in Maemo should be avoided as there are underlying conflicts/problems with the old ESD setup on Diable/N8x0 devices; not sure what the status is with Fremantle/Maemo5. It may work, don't know for sure... the general consensus I found when researching it though was if you're building a new app don't use SDL mixer... so not sure if that helps at all, but that's what I've heard...