Patch 4.15 notes
Better start planning for the emergency maint next week when they take this feature out.When using the performance actions, you are strictly prohibited from performing the music of any third parties. You may record and upload your performance and hereby agree to license such recordings to us for use by Square Enix or others in accordance with the terms of the “FINAL FANTASY XIV Material Usage License.”
[edit] tbh watching people jam out on their harps is pretty funny