Bachipedia – a project of the J.S. Bach Foundation
The J.S. Bach Foundation performs the complete vocal work of Johann Sebastian Bach (1685-1750) within 25 years. The first cantata performance took place in 2006. All introductions, concerts and reflections are recorded in sound & image. In recent years, a large pool of film and audio material as well as supplementary content to the vocal works has been produced. One of the aims of the foundation is to disseminate Bach's vocal works and, in particular, to pass them on to the youth. For this reason, the J.S. Bach Foundation has established Bachipedia. Learn more about the project.
In these quick explainers, our conductor Ruedi Lutz gets straight to the heart of a variety of musical concepts. Clear, concise, entertaining. Simply “Ruedi to go”!
Diminished seventh chord
What is a diminished seventh chord? In this video, Ruedi is given three minutes to teach Konrad the basics. He shows Konrad how to build the chord as a series of minor-third intervals: F sharp, A, C, and E flat – “or is that a D sharp?” asks Konrad. That’s the problem, explains Ruedi. When the diminished seventh note is treated as an E flat, it resolves downwards in the chordal progression, when treated at as a D sharp, it resolves upwards. That’s what makes the chord so enigmatic – something of a wolf in sheep’s clothing, they decide.