The alegrías comes from Cádiz, and its name means joys. It belongs to the cantiñas, a family of lively, major-key palos, and it is one of the most danced of all. Its compás is the soleá’s, count for count: twelve counts, printed from 1, with the same five accents. What changes is everything the count carries — the key, the tempo and the mood.
The same cycle, a different palo
Because the accents fall on the same counts as the soleá’s, every reading in the table above comes out the same as it does there: the same grouping read from 12, the same accents explained by the count in threes and by the count in twos, the same accents that only one of the two catches. That is not a coincidence the page is pointing out; it is the declaration. Its source prints the alegrías’ accents exactly where it prints the soleá’s, and the shared-cycle line above is worked out from the two declarations rather than typed.
What the count alone cannot show is tempo. The alegrías is played noticeably faster than a soleá, and a dancer’s alegrías has sections of its own laid over the same cycle. A clapper who can hold the soleá’s twelve counts can hold these; they will just need to hold them quicker.
The cadence
The alegrías is in a major key, not in the flamenco mode, and its source gives E major or A major as the usual keys. This page opens in E, the key of the por arriba position, where the home chord’s root is the open sixth string. The cadence is the swing its source prints for the major-key cantiñas: from the tonic to the dominant seventh and home again. Pick another key and the same three chords are realised there, the way a guitarist with a capo would meet a singer; the cycle above stays exactly where it is.