This is a blog about this site, which introduces the lesser-known Emanuel Bach (C. P. E. Bach). This English version was translated from Japanese one by ChatGPT.
Until now, I had GPT-4o write the commentaries on C. P. E. Bach’s works, but I have rewritten part of them using GPT-5. As a result, the commentaries on Wq. 62 – Wq. 111 have become far better than I expected. Previously, the explanations were rather general and could have applied to other pieces as well, but those written by GPT-5 capture the individual characteristics of each work with striking sharpness. However, please note that the factual accuracy of these commentaries has not yet been verified.
GPT-5 often uses expressions such as “anticipating Beethoven.” For example, the following piece is described in that way: Keyboard Sonata in G Minor, Wq. 65-27 (H. 68). I recommend reading the commentary while listening to the performance by either Markovina or Spány on that page.
Although most of the works between Wq. 62 and Wq. 111 are solo keyboard pieces, there are also chamber-symphonic works such as Sinfonia in D Major, Wq. 74 (H. 507). While C. P. E. Bach’s principal symphonies are numbered Wq. 173 – Wq. 183, this one bears a distant number. You can also listen to one performance of it on that page.
So far, only a portion of the commentaries have been rewritten, but I plan to gradually increase the number of those written by GPT-5.