There's a small nodding of the head that jazz listeners do when the swing broadens and intensifies.
There is a much more pronounced chicken-head bob that DJs and aficionados of the broken beats scene do when the groove deepens.
Half-way through the set from this five-piece "culture clash of African rhythms and digital beats", DJ Charlie Dark and synth master Mark de Clive-Lowe were doing some serious chicken-heading on the right of the stage, while on the far left guitarist David Okumu was riding the energy wave with an increasingly intense solo.
Between them Chief Udoh Essiet and Richard Olatunde were keeping the African drums talking, adding width to the deeper and deeper beats of Dark and Clive-Lowe.
This was a night when the drum ruled, and though he may have graciously referred to Dark as "the captain" of this project, there was little doubt that it was the Chief who was on the throne.
The cooking finale featured a virtuoso display by Essiet, playing his congas with sticks and having great fun with an endless array of fresh patterns while keeping the beat powerful and direct.
The characteristic West African high life rhythms of King Sunny Ade and Fela Kuti (the Chief had drummed for Kuti) have a certain completeness one messes with at one's peril. At times it felt as if the heavier digital boot was crushing the lighter stepping African percussion.
Dark does, however, bring the DJ's modesty and enthusiasm to the party. He relates a brief autobiography between tunes, showing how this band is the natural product of his English upbringing, his Ghanaian heritage, his love of the music up against his limited ability on any conventional musical instrument. The captain's choice of crew shows where his real strength lies.