Farinelli and The King is pretty much a perfect piece of theatre. More importantly, though, it’s perfectly timed. In a month when English National Opera’s troubles have made the front page, when op-eds are all about why Simon Rattle’s dreams of a new concert hall for London are fruitless, this paean to music – to its serious, healing, transformative power – is not only resonant, but necessary.

For those who never saw Samuel Beckett’s favoured performer Billie Whitelaw on stage as indomitable, buried-alive Winnie, peculiarly happy days are here again with another once-in-a-generation actress facing what Dame Peggie Ashcroft called “a ‘summit’ part”, the female equivalent of Hamlet. Juliet Stevenson makes you think not so much “what a great performance” as “what a towering masterpiece of a play” – and how often do star interpretations even of the big Shakespeare roles prompt that kind of reaction?

Has there ever been a successful dinner party on stage? It seems no sooner has the table been set than domestic disharmony erupts: opposing personalities obligingly clash, the veil of marital bliss is torn asunder, and terrible secrets are spilled along with the wine. In other words, dinner parties are the playwright’s bread and butter.

Turning John Cleland’s 18^th-century erotic classic Memoirs of a Woman of Pleasure into a convincing stage play is a tall order. The book, a product of male fantasy, is a catalogue of sexual feats of every order, rich in euphemism and with a dash of poetry. April de Angelis’s adaptation – originally written for Red Shift in the early 1990s – is more of an appropriation, with a post-feminist reversal of roles, in which the stories we are told on stage are the product of women’s rather than men’s imaginations.

The casual theatre-goer may be forgiven for thinking that, in Wales at least, serious theatre is going through a phase of chronic disregard for the audience. Yvonne Murphy’s all-female Richard III, performed in the rafters of the monolithic Wales Millennium Centre, is as serious as theatre gets, but finally crippled by its seeming disregard for the audience experience.

There is indeed something of Frankenstein’s monster about the handsome young gardener, with his flat-top haircut and gym-bulked torso, who has come to mow James Whale’s lawn. The retired Hollywood director, now plagued by a series of strokes, is pathologically alert to remembrances of his earlier life, and it’s Whale’s state of mind, rather than the game-changing films he made in 1930s Hollywood (Frankenstein, Bride of Frankenstein, The Man in the Iron Mask), that forms the locus of Russell Labey’s new play.

Is there such a thing as New Writing Pure? By this I mean plays that not only have a really contemporary sense of character, plot and dialogue, but are also written in a distinctly individual language whose texture is singular and personal. Call it fine writing, call it literary, it doesn’t matter. The point is that this kind of theatre is about plays that are not only beautiful to look at, but beautiful to hear as well. After all, words are an essential part of the overall theatre experience.

Casting existing partners is no guarantee of artistic success – for every Burton/Taylor, there is a Bennifer. Hannah Price has taken a risk, too, by pairing the revered Dame Harriet Walter with her comparatively unfamiliar American husband, Guy Paul, in Clara Brennan’s exposing two-hander. But it’s a risk worth taking, as the couple’s deep-rooted rapport lends a frisson to this stroll down memory lane.

The Orange Tree’s renaissance continues with this searing piece from playwright of the moment Alice Birch, who will shortly follow up last year’s subversive Revolt. She Said. Revolt Again with an interrogation of the porn industry for Rufus Norris’s debut National season. Her fearlessness is also in evidence in deceptive early work Little Light, an initially typical domestic drama that furiously erupts in a bruising, bravura 90 minutes.

Kay Adshead’s new play about the Arab Spring has a beguiling premise: to tell the human stories behind the headlines. We all remember the news footage of the Arab Spring in 2011, from Tunisia to Egypt, with their huge crowds and mass protests. Contrary to the West’s clichéd view of passive Arab women, many of the protestors who took to the streets were female. They may have been veiled, but that didn’t prevent them from being radical activists.