Actually, flamenco is just not even native to Barcelona. It made way at another stop of your region in sunny Andalusia! Having said that, as a lot of Andalusian-born Spaniards moved to Barcelona for work over the past several decades, they brought their storied custom of flamenco coupled with them. https://www.triptales.me/unlock-barcelonas-hidden-treasures-secret-spots-you-cant-miss/