What happens when the principle of the “golden section” is transferred to a piano? Balanced models such as the C 124 Tradition or the Tradition Oval. In art and architecture, the golden section is frequently considered to be the ideal inter-proportion between various lengths and also the epitome of aesthetics and harmony. Viewed from these aspects, these two models certainly fulfil all these criteria. In the C 124 Tradition Oval channelled pilasters have been added at the sides.