Tresillo (trɛˈsiːjoʊ ; tɾeˈsiʎo) is a rhythmic pattern (shown below) used in Latin American music. It is a more basic form of the rhythmic figure known as the habanera. \new RhythmicStaff { \clef percussion \time 2/4 \repeat volta 2 { c8. c16 r8[ c] } } Tresillo is the most fundamental duple-pulse rhythmic cell in Cuban and other Latin American music. It was introduced in the New World through the Atlantic slave trade during the Colonial period. The pattern is also the most fundamental and most prevalent duple-pulse rhythmic cell in Sub-Saharan African music traditions. The cinquillo pattern is another common embellishment of tresillo. Cinquillo is used frequently in the Cuban contradanza (the "habanera") and the danzón. Tresillo is a Spanish word meaning "triplet"—three equal notes within the same time span normally occupied by two notes. In its formal usage, tresillo refers to a subdivision of the beat that does not normally occur within the given structure. Therefore, it is indicated by the number 3 between the halves of a horizontal bracket over the notes, as shown below. The first measure divides each beat in three: one, and, ah, two, and, ah. The second divides the span of two main beats by three (hemiola): one-ah, two-ah, three-ah. \new RhythmicStaff { \clef percussion \time 2/4 \repeat volta 2 { \tuplet 3/2 { c8 c c } \tuplet 3/2 { c8 c c } } \repeat volta 2 { \tuplet 3/2 { c4 c c } } } In sub-Saharan rhythm, the four main beats are typically divided into three or four pulses, creating a 12-pulse (), or 16-pulse () cycle. Every triple-pulse pattern has its duple-pulse correlate; the two pulse structures are two sides of the same coin. Cross-beats are generated by grouping pulses contrary to their given structure, for example: groups of two or four in or groups of three or six in . The duple-pulse correlative of the three cross-beats of the hemiola, is known in Afro-Cuban music as tresillo. The pulse names of tresillo and the three cross-beats of the hemiola (3:2) are identical: one, one-ah, two-and.
Martin Alois Rohrmeier, Steffen Alexander Herff, Gabriele Cecchetti