Great work, a great music treat.
Its very good work, mainly most of the music is mixed, so its like a jukebox, but variety of different music, and the bonus round is good as well, great game for anyone who likes music or listens to it quite a lot, but i have to say that you should add this part i suggest: make a part where you can choose different genres of music questions such as "rock questions" to people who like that for the example, that way it`ll make the game better because the player who plays the game might want a genre to choose, but its just a suggestion, im not actually forcing you to do this. a 7 out of 10 stars, and a 4 out of 5 for brilliant work and submitting this, i hope you make many more games like this, i wish to play them.