Nic's Lunchbox by Nicholas Brockelbank

Pythagoras and the Ratios by Julie Ellis

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Pythagoras and his cousin Octavius want to win a music contest but first they must figure out how to play their musical instruments in unison, something that's never been done before. Pythagoras makes an important discovery-notes that sound pleasant together have a certain mathematical ratio. When Pythagoras applies this ration to his cousin's pipes and lyres, the result is music to his ears. This 2010 Charlesbridge Pub Paperback is in Fair condition.

ISBN: 9781570917769 SKU: 1314671 Note: Any image shown is from a stock photo and is not the actual book.