Claims to embody the spirit of flamenco, or to be born with flamenco in one's blood, abound in the programme of the annual Sadler's Wells flamenco festival. Sara Baras, whose show Voces opened the two week festival on Tuesday, doesn't make such a claim in writing: she doesn't need to. Her every move on stage radiates the self-possession of a flamenco aristocrat, a confidence so vital it simply bulldozes proscenium and fourth wall to set up a visceral – and vocal – relationship between audience and performer.

The career of the Gran Canaria-born musician Pablo Díaz-Reixa seems to work in an accelerated time-frame, speeding through decades and eras as he develops his sound. Though he has always worked with digital technology, his early work sounded archaic, its massed carnival percussion and traditional melodies roaming around the Afro-Latin diaspora.

The latest themed season from WNO, to add to their fallen women, Donizetti queens and what not, goes by the slightly worrying title (for anyone with a short attention span) of “Figaro Forever”, and consists of an operatic sequence derived from Beaumarchais’ three Figaro plays and ending with a new opera by Elena Langer partly based on the last of them, La mère coupable.

Guadalupe Plata are a Spanish three-piece whose tunes will be a sonic treat for those who like their blues raw but with an extra dash of flavour. On their self-titled second album, spikey blues, bebop and rockabilly sounds rub up against the Moorish and Romany roots of Andalusian traditional music to produce a very special gumbo that will appeal to lovers of RL Burnside, Tav Falco, Link Wray and gutsy Latino bands like The Plugz and Tito and Tarantula.

"I fell in love with the psychology of Goya and his palette,” wrote brilliant composer-pianist Enrique Granados at the beginning of an evocative paean prefacing his six original Goyescas of 1909-11, finely-wrought gems of the piano repertoire. In love, too, are most of us who have gaped with awe at the astonishing range and careful selection of portraits in the current National Gallery exhibition - one of its best ever, equal in revelation to the recent Rembrandt spectacular.

L'Arpeggiata seem to revel in being L'Anachronista. The baroque-jazz group led by the Graz-born theorbo player Christina Pluhar has been proudly and brazenly flouting the dictates of those who set the rules of Historically Informed Performance (HIP) for all 15 years of their existence.

The second instalment of this three-part series on the history of Spain (from the BBC in collaboration with the Open University) told a tale that is probably still relatively unfamiliar in the Anglophone world. That’s despite the fact that one of its star turns was the financing by that fervently religious 15th century Iberian power couple, Ferdinand of Aragon and Isabella of Castile, of the legendary voyage of Christopher Columbus.

"Exhibition on Screen" is a logical extension of the recent phenomenon of screenings of live performances of opera and theatre. Initiated with the Leonardo exhibition of 2012 at London’s National Gallery, this is its third season, and the format remains unchanged: a specific show provides the pretext for a bespoke film that goes beyond the gallery walls.

Any exhibition of Sol LeWitt’s work raises an interesting question. Why go and see it if it’s the idea that’s the most important aspect of the work? In his 1967 essay, “Paragraphs on Conceptual Art”, he clearly outlined the predominance of the idea over material form, which may seem an obvious statement to make about conceptual art (the label’s on the tin) but LeWitt went further. “All of the planning and decisions are made beforehand and the execution is a perfunctory affair,” he wrote. “The idea becomes a machine that makes the art.”

Carlos Acosta is that rare 21st-century phenomenon – a performer who has become a household name without the help of reality TV. Even people who run a mile from ballet know the story of the Havana slum boy made good through perseverance and pure talent, from countless primetime documentaries as well as a self-penned book and stage show. The Royal Ballet cannot have imagined how things would turn out when it signed its first (and, to date, only) black principal 17 years ago.