Thanks so much for playing and for featuring us in your video! <3
For the hard mode, it is a bit tricky, as there are chords where you have to play 2/3/4 notes at the same time for them to register! So if you just play one note it does not count. We will try to think of a way to explain this better to the player :)
We will also have a think of how best to indicate the level lengths. Thanks for your feedback!
Thanks for the suggestion, we will get that tag added, but will have to wait for the end of the jam as not sure what the rules are on editing the page while it's ongoing! ^^;