Tihai
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The tihai (pronounced tee-'high) is a poly-rhythmic device originating from Indian classical music. The basic format of the tihai is 3 equal repetitions of a rhythmic pattern, interspersed with 2 equal rests, and all five components adding up to the number of beats in the phrase.
If the phrase is sixteen beats long, the outline of a tihai might look like: 4 2 4 2 4. Each "4" represents a pattern that is four beats long and each "2" represents a rest that is two beats long (4+2+4+2+4=16). The start of the next phrase is exactly on the downbeat. Another example is a 2 5 2 5 2 in a sixteen beat phrase. Two beats of rhythm with five beats of rest between.
Tihai's may be employed in any length of phrase as long as the rules are followed.:
- there must be three groupings of playing, all of equal length
- these must be alternated with 2 groupings of rest, both of equal length
- the pattern must land the player back on the downbeat-- ready to start the next phrase.
[edit] Western use
Modern western composers have also employed this technique. One example is Daniel Levitan's percussion duet First Invention [1] copyrighted in 2006 and premiered at the University of Colorado in Boulder, Colorado.