concertos for 1, 2, 3, and even 4 harpsichords
...that Johann Sebastian Bach wrote concertos for 1, 2, 3, and even 4 harpsichords?
...that <a href="./Johann_Sebastian_Bach" id="mwESg" rel="mw:WikiLink" title="Johann Sebastian Bach">Johann Sebastian Bach</a> wrote <b id="mwESk"><a class="mw-redirect" href="./Harpsichord_concertos_(J._S._Bach)" id="mwESo" rel="mw:WikiLink" title="Harpsichord concertos (J. S. Bach)">concertos for 1, 2, 3, and even 4 harpsichords</a></b>?