Fire and earth are the basic building blocks of flamenco, a music-and-dance style rooted in the soil of southern Spain and marked by intense flames of passion. But in del Mar, at the Waterfront Theatre on Saturday (April 1), water takes centre stage, and devotees of the Andalusian art form will no doubt be curious to see how this plays out. Vancouver’s avant-garde Raíces y Alas Flamenco Project has a reputation for expanding on flamenco tradition without losing any of the idiom’s characteristic flavour; don’t expect dilution here.