Did this for a teaching class. Got my information from The Skillful Teacher/Saphier, Haley-Speca, Gower, 2008.

1. Photo courtesy Flickr user CowTopCop. Finhead (Michael Collins) of Liqueur Flambe. Playing violin with partner Madam Stradivarius (Rachele Wildmere) standing on his shoulders, also playing violin.Street performers at the Auckland International Buskers Festival 2010. The Practice Principle

3. The Practice Principle—Diminishing Returns

6. Photo courtesy Flickr user CowTopCop. Finhead (Michael Collins) of Liqueur Flambe. Playing violin with partner Madam Stradivarius (Rachele Wildmere) standing on his shoulders, also playing violin.Street performers at the Auckland International Buskers Festival 2010. The Practice Principle