Can I just beat the dead horse abt the Stolas thing for a sec, I love old animated Disney musicals, and I've constantly seen characters have songs that last only a few minutes get hours or more worth of work done, like oh I dunno this little movie you might have heard called MULAN, where they sing about being a man and somehow train a whole army over like a few weeks/months, now this is a more extreme example. In this particular case, Stolas was trying to comfort his daughter over an unknown period of time, the songs duration being disjointed from the actual consoling of his daughter is more than just possible, its the most likely answer.
Musicals do this all the time, and while I hate that it removes an FTL thing from the verse, musical logic prevails here even more when accounting for the fact that Viv explicitly loves musical theater, which means she definitely picked up on this trick and used it.