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Encyclopedia > Crab canon

A crab canon is an arrangement of two things that are complementary and backward. Originally it is a musical term for a kind of canon in which one line is reversed in time and pitch from the other (e.g. FABACEAE <=> CGCEGFGB). The use of the term in non-musical contexts was popularized by Douglas Hofstadter.


  Results from FactBites:
 
Canon (music) - Wikipedia, the free encyclopedia (873 words)
In a crab canon, also known as cancrizans, the follower accompanies the leader backward (in retrograde).
Many such canons were composed during the Renaissance, particularly in the late 15th and early 16th centuries; Johannes Ockeghem wrote an entire mass (the Missa Prolationum) in which each section is a mensuration canon, and all at different speeds and entry intervals.
Such a canon is often called a round or rota (Sumer is icumen in) is one example of a piece designated rota.
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