Filmmaker Carlo Hofmann via his Vimeo channel looks at the work of the Austrian guitar maker Tobias Braun. I like how Braun talks about what it feels like to be in his shop. It’s like stepping into the past! Also, how the soundboard is the soup and the back, sides and neck all spices for the soup! He mentions as well how there is no formula for things like thickness of the wood etc as it all depends on the unique wood and the judgement of the luthier.