The music notes are for switching the different songs.
Grey Diamond is even more insecure than Smoky Quartz. They are also the strongest fusion yet. Though only a quarter of the size of Obsidian, they can flatten Mount Everest like it's a tin can. As the most powerful and most insecure Gem, Grey struggles with self-love. They believe they are too dangerous to be around their friends. Thanks to Connie and Aqua, however, they managed to get over their PTSD. Interestingly enough, Grey Diamond can't unfuse until they are calmed down. They are the tallest two-gem fusion.
