A juke - a mathemusical measure - is an iterated perturbation* (sesquilinear transform) to Egglepple. To juke is to proof some twistor space with (an) EGP encryption [more accurately, to transactionally encrypt EGP onto a brane (tape)]. Juking will summon a redeemable option (the coupon) on a continuous event that is predetermined. In this case, jukes are proxies for the statistical variance of tablature complexity, and serve to hedge some handicap. Jukes themselves generate UUe's cryptohash (provided from seigniorage on coupons); being synonymous with coin insertion [deposit] for traditional jukebox activation and dispensing.ie. ultrametric calculus
Within the context of stew choreography, a juke is a play that is symmetry-breaking but not an endgame move, which means that it does not include: (1) the coupling of adjacent leaves, or (2) the leaves EEE and PPP [(namely (EEE,PPP) / (PPP,EEE)] in coordination. Failing to adhere to this rule would result in dissonance.

Note (+): It may be the case that the leaves EEE and PPP can/should be replaced by EEG and PPG, respectively. This is because EEE and PPP actually are loop markers (marking initiation and termination) in a sequence. Adjacent leaves cannot be coupled due to the fact that a chord (three leaves or more) is required for folding.

Out of the total twenty-six (26) stews, only twenty-four (24) of them allow legal jukes. This stems from the fact that a composition cannot lack harmony, which is to say that a loop (connected endpoints), nor adjacencies (any side-by-side coordinates) are permissible. (see also Juke Lemma, juke tax, juke notation, juke button)

Note (+): The sequence of leaves in a juke is immune to start/stop identification. Meaning that it is not illegal to have an opus be of identical lettering (eg. "Opus LL").