I really feel like Fortnite Festival should have leaned far more into a karaoke aesthetic considering where the playerbase ended up. Most people agree Vocals is not only easier as an entry point, meaning newbies are far less likely to quit out of frustration, the hardest vocal maps are just generally far more engaging compared to every other type of instrument. They're challenging for most people without being highly repetitive and boring. And certainly every time I've ever had true fun in the mode, it's always been a 5+ difficulty vocal map.