Same question basically, a few different ways:
1. If a Spellsinger, Stormsinger and Warchanter walk into a bar, can the patrons get the best of all their special song add ons?
2. Given different bards can have different song add-ons, and given that songs reportedly don't stack, only the best applies (or something), what does that actually mean?
3. Does bard with highest song level just straight up overwrite the other bards' songs? Seems like more questions then, like what happens in tie?