If you have trouble opening the link, or if Music Blocks does not open after about 30 seconds please check the following:
What browser are you using? Music Blocks works best in Chrome. It should also work in Chromium, FireFox and newer versions of Microsoft Edge (which are based off of Chromium). Unfortunately, Safari does not support all of Music Blocks’ features at the time of this writing. Mac users should download Chrome for best results.
If you are having trouble with sound, please check the following: