A crab canon (also known by the Latin form of the name, canon cancrizans; as well as retrograde canon, canon per recte et retro or canon per rectus et inversus) is an arrangement of two musical lines that are complementary and backward.
No licensed photograph yet
Four in five rooms open without one. Add a photograph with a declared licence and your credit sits under it, permanently.
A crab canon (also known by the Latin form of the name, canon cancrizans; as well as retrograde canon, canon per recte et retro or canon per rectus et inversus) is an arrangement of two musical lines that are complementary and backward.
01 · What it is
Music
Vocal, percussive, or instrumental sound tradition carried by community performers.
02 · Where & name
Geography awaiting source
Add a cited source naming the region or community that carries it.
03 · How it is doing
□□□□ (Not yet assessed)
Documented in open cultural records, but no cited field assessment of its current vitality has been added here yet.
04 · Proof & reuse
1 cited source
Every claim links to a public record below. Free to quote, teach, and share under CC BY-SA 4.0.
Common Questions Answered on Record
What is crab canon in plain words?
A crab canon (also known by the Latin form of the name, canon cancrizans; as well as retrograde canon, canon per recte et retro or canon per rectus et inversus) is an arrangement of two musical lines that are complementary and backward.
Where is crab canon practised or documented?
No verified geographic place has been linked on record yet — editors can add a cited place from the edit page.
What is the current condition of crab canon today?
□□□□ (Not yet assessed): Documented in open cultural records, but no cited field assessment of its current vitality has been added here yet.
How do I cite or share this crab canon entry?
Cite as: "crab canon." folkroom, https://folkroom.org/art-forms/crab-canon, text CC BY-SA, with attribution.
A crab canon (also known by the Latin form of the name, canon cancrizans; as well as retrograde canon, canon per recte et retro or canon per rectus et inversus) is an arrangement of two musical lines that are complementary and backward. If the two lines were placed next to each other (as opposed to stacked), the lines would form something conceptually similar to a palindrome. The name 'crab' refers to the fact that crabs are known to walk backward (although they can also walk forward and sideways). It originally referred to a kind of canon in which one line is played backward (e.g. FABACEAE played simultaneously with EAECABAF). An example is found in J. S. Bach's The Musical Offering, which also contains a table canon ("Quaerendo invenietis"), which combines retrogression with inversion by having one player turn the music upside down.
The text above is adapted from the Wikipedia article “Crab canon”, available under the Creative Commons Attribution-ShareAlike 4.0 licence.
crab canon is an arrangement of two musical lines that are complementary and backward, according to the structured record cited below. This entry was generated automatically from that record and has not yet been reviewed by a person familiar with the tradition. 1
The source record links this tradition to 1 external register, which can be verified through the citation. 1
A free public archive of the world’s living and endangered cultural traditions — documented with primary sources, geographic coordinates, and open-licensed photography. Two rooms, one wall. The door is open.