Byzantine Blackwood convention Byzantine Blackwood convention Byzantine Blackwood is a bidding in the game of bridge. Devised by Jack Marx, it is a complex version of the (by which a four notrump (4NT) asks about 's holdings). Its premise is that both aces and kings may safely be shown in response to a Blackwood-type 4NT enquiry; provided that such kings are in well-defined "key" or "half-key" suits, there being no more than two such suits. The name was chosen to express the idea that Byzantine Blackwood is a development from Roman Blackwood, by analogy with the Byzantine Empire and the Roman Empire; rather
C. F. E. BACH motif work in the letter of Carl Philipp Emanuel Bach. C. F. E. BACH motif The C. F. E. BACH motif is a musical motif, consisting of the notes C, F, E, B "flat", A, C, B "natural". The motif is a musical cryptogram, which represents the name of Carl Philipp Emanuel Bach with the initials of his name - Carl Philipp (Filippo) Emanuel Bach -. The motif is based on the German musical nomenclature, in which the note B "naturalis" named H and the B "flat" named B - the same as in the ominous BACH motif -, however the