Hello there! I sorta used the melody in the original music you had in there, so here's a new version! This music changes depending or the pause or play state. It can easily be added to your original project (simply delete the old "Music Slider" sprite, and use mine instead). I have already made sure it works in the game, so let me know if you need help.
Please make sure to rate this on the Piano shop: https://scratch.mit.edu/discuss/post/6947018/ If you want it any longer or different, please let me know.