The irony is you are posting this on an article about Bach. For about 200 years if people said Bach they meant C.P.E., not J.S. It wasn't until Mendelssohn perf

The irony is you are posting this on an article about Bach. For about 200 years if people said Bach they meant C.P.E., not J.S. It wasn't until Mendelssohn performed the St. Matthew Passion that people began to reevaluate their attitudes and Bach assumed the place in the pantheon of composers. How we evaluate music is deeply subjective. The complex harmonic and counterpunctal vocabulary of the Baroque was passe by the time Bach died, replaced by the simplicity of the Classical period. And then romanticism kept the harmony, but created sweeping emotion rather than deep craft. Then look at jazz where the relationships of chords are entirely changed. So yes, there are works that people overlook and reevaluate.