The 6/8 Afro-Cuban framework is older than son or rumba — it traces back to West African bell rhythms carried to Cuba through Yoruba and Bantu lineages. The ear-mark is the standard pattern, a seven-note bell figure that fits inside two beats of dotted-quarter pulse but constantly implies a 4-feel underneath. Listen to it long enough and you can hear it as 6/8 (two pulses of 3) or as 4/4 (four pulses of dotted-eighth). The greatest 6/8 drummers feel both at once.
Notation here uses 6/8 with the dotted quarter as the felt pulse — two main beats per bar, each subdivided into three 8th notes. The bell pattern beams as two groups of three: a wave shape that lifts and lands twice per bar. The clave-foot is the dotted quarter: a bedrock pulse on every main beat. Cross-stick adds the 6/8 clave (a five-note pattern across two bars). Kick punctuates the strong points. Build it one layer at a time — the moment you can hold the bell and tap the dotted-quarter pulse without one swallowing the other, you're inside the music.