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Music is Math - Kathak Clock Movement & Music Activity Rhythm,like so many aspects of time, around the world, is better visualized as cyclical rather than linear, and this includes North Indian Classical Music, also known as Hindustani music. In the music of Kathak, the rhythm moves in a circle like a clock, beginning with one and ending on one. The cycles of beats are called a tal, or tala. These cycles are foundations upon which rhythmic patterns are built. The musicians and dancers overlay various rhythms on top of this foundation, creating a complex, polyrhythmic sound. A common cycle (tala) is Teental, which is a 16 beat tala. Dancers and musicians count the beat on the hand using claps and open palms to denote the divisions in the cycle. This is a complex rhythmic system, rigid, yet allowing polyrhythmic improvisations to happen. Students can better understand this concept by drawing a diagram similar to a clock.
Part 1- Grades K and up Have the students count starting with one and ending on one, not on 16. Indian compositions nearly always end on one. As an option, students can count in Hindi (the national language of
India) 1 through 16 as follows: Part 2 - Grades 3 and up Here is a chance to create a special type of composition called Tihais
(pronounced tea-hiz). This is a special rhythmic pattern that repeats
itself three times. One example of this is where a=4 (beats) and b=2 (beats) 4+2+4+2+4 a and b can equal any positive number. To vocalize our example solution in music, have the students count starting at the top of the clock. The numbers in the "a" group will be the vocalized beats, and the numbers in the "b" group will be gaps or rest beats. Students should count out loud the numbers in the "a" group, and whisper the numbers of the "b" group. While the number one marks the beginning and the end of the cycle, it does not count as the first beat. This is because beats are counted by the intervals between each number. The "1" acts like the starting gun in a race; it functions to start and end the cycle. (See Q1 below) To execute the example
above vocally, just one time around the clock, they would speak as
follows, with "a" numbers
spoken and "b" numbers
whispered. Example: Common questions: Q: Why is there
only one number (6 or 12) that represents a two-beat rest? Q: Why do we count 1 at the beginning and the end? Q: What
happens if I want to do my cycle more than once around the clock? Do
I count 1 twice, once to end the first cycle and once to begin the
second? Students are welcome to use fractions to solve this equation, however these will be more difficult to vocalize, as they encounter subdivisions of the musical beats. They would have to vocalize "1 & 2& 3&" etc, if they are to include halves, and "1 e & a 2 e & a" etc if they are to include quarters in their equation. As you can see, Hindustani
music is very complex. This cycle of 16 is only one of many cycles
used. Here we have not begun to address the subdivisions
of beats, which layer on more complexity and beauty to both the music
and the dance form. You can see why people study for years and years
to learn this style of dance!
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