There is a mistake in the upload for chapter 15, I Am A Piano. The "schoolkids" page was switched with the "concert hall" page.
Incidentally, the little 8-page oneshot is one of the very best short works I've ever had the pleasure to read. It tells such an expansive narrative with such delicacy and economy, that one would be moved to call it poetry.
(All the more reason the page switch is so harmful to the effect--no poem would survive a mistakenly edited line unscathed!)