Why is the Crab Canon special?
By Matthew Alvarez
Why is the Crab Canon special?
The Crab Canon is the first of the puzzle canons, and has the simplest solution — which is that it needs to be performed forwards by one instrument and backwards by another. The hint Bach provided in the score is that there are two clefs on the same staff.
Why is it called the Crab Canon?
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).
What is a retrograde canon?
noun. music. a canon in which the imitating voice repeats the notes of the theme in reverse order. Also called: retrograde canon, canon cancrizans.
How do you write a cannon?
Canons can be written for three, four, eight, twelve—any number of voices. One of the simplest forms of a canon is the round. They are found in many folk traditions and children’s songs. A round is called an “infinite canon” because as soon as you get to the end, you go back to the beginning.
What is melodic augmentation?
Augmentation is a compositional device where a melody, theme or motif is presented in longer note-values than were previously used. …
What is a diminution in music?
Diminution is when a musical idea is repeated with the note values halved – so the notes are shorter. Augmentation is when a musical idea is repeated but with the note values doubled, which doubles the length of the idea.
What is a puzzle canon?
A puzzle canon, riddle canon, or enigma canon is a canon in which only one voice is notated and the rules for determining the remaining parts and the time intervals of their entrances must be guessed.
What is a sequential discovery puzzle?
Surprising puzzles that require a series of steps and hidden tools to solve.
