The Tatum grid is the "lowest regular pulse train that a listener intuitively infers from the timing of perceived musical events". The grid can be computed by using a histogram of inter-onset intervals.

The term was coined by J. A. Bilmes in an MIT Master's thesis Timing is of essence published in 1993, and named after the influential jazz

Jazz

Jazz is a musical style that originated at the beginning of the 20th century in African American communities in the Southern United States. It was born out of a mix of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th...

 musician Art Tatum

Art Tatum

Arthur "Art" Tatum, Jr. was an American jazz pianist and virtuoso who played with phenomenal facility despite being nearly blind.Tatum is widely acknowledged as one of the greatest jazz pianists of all time...

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