Lost Bach pieces played for 1st time in 320 yrs

Previously unknown organ works by Johann Sebastian Bach have been presented and performed in Germany for the first time in 320 years.
Germany’s Culture Minister Wolfram Weimer called the discovery of the two pieces a “great moment for the world of music”.
They first caught the attention of the Peter Wollny, a researcher of the German composer and musician, in 1992 when he was cataloguing Bach manuscripts at the Royal Library of Belgium in Brussels.
The organ works – the Chaconne in D minor BWV 1178 and Chaconne in G minor BWV 1179 – were undated and unsigned. Mr Wollny spent the next 30 years working to confirm the identity of the pieces.
They were performed at the St Thomas Church in Leipzig, where Bach is buried and where he worked as a cantor for 27 years.
The two pieces were played by Dutch organist Ton Koopman, who said he was proud to be able to perform them for the first time in 320 years. (BBC)