All books on the "Play" portion of the site, including Percussion, are done. I'm not promising they are free of typos however. Please let me know if you notice something that doesn't seem quite right.
Some QR Codes still may need updating. If you notice a broken link let me know and then try searching for the video on YouTube. Many of the Percussion videos I still need to make and they will be online in the coming weeks. Plan on updating your copy of that book next month.
Coming up after that will be a Full Conductor's Score and a book for Bass Guitar!
Honored that anyone is using these books in the classroom. Please let me know if you need anything, I could potentially send you a fixed pdf within the day.