What is the Flamenco Alegrías?
Alegrias (meaning joy) are a lively branch of Soleares (usually 100-180 BPM) that originated in Cadíz. Alegrias are in a major key (typically E major or A major), and are popular to perform with a dancer or as a solo. The sung verses (letras) are usually about sailors, which is appropriate as Cadíz is located on the coast.
The Alegría includes two sections for the dancer: the silencio, in which a minor key (usually the parallel minor) and slower tempo is introduced over six compáses or so; and the escobilla, which includes a virtuosic guitar solo and gradual increase in rhythm.
Flamenco Alegrías Examples and Links
Here are some of my favorite exemplary Alegrías: