We’ve always prided ourselves on the resonant quality of O’Reilly titles amongst our readers, but we didn’t mean literally. This Japanese maker found that they generated the best sound when building a book xylophone. Apparently Japanese paper is too moist and returns more of a thud. But O’Reilly books are just right. And the varied book sizes (and uniform cover designs) came in handy too.

Musical instruments made of books [In machine-translated Manglish]