His name fell into neglect during the 19th century, with Robert Schumann notoriously opining that "as a creative musician he remained very far behind his father"; others opined that he was "a somewhat feeble imitator of his father's style". All the same, Johannes Brahms held him in high regard and edited some of his music. By the early 20th century, he was better regarded but the revival of C. P. E. Bach's works has been chiefly underway since Helmuth Koch's recordings of his symphonies and Hugo Ruf's recordings of his keyboard sonatas in the 1960s. There is an ongoing project to record his complete works, led by on the Swedish record label BIS. In 2014, the Croatian pianist Ana-Marija Markovina, in cooperation with the Packard Humanities Institute, the Bach-Archiv Leipzig, the Sächsische Akademie der Wissenschaften zu Leipzig and Harvard University released a 26-CD box set of the complete works for solo piano on the German record label Hänssler Classic, performed on a modern Bösendorfer grand piano.