In 2005, Weir was appointed CBE for services to music. On 30 June 2014, The Guardian stated that her appointment as the Master of the Queen's Music, succeeding Sir Peter Maxwell Davies (whose term of office expired in March 2014), would be announced; this was officially confirmed on 21 July. In May 2015, Weir won The Ivors Classical Music Award at the Ivor Novello Awards.
Weir's musical language is fairly conservative, with a "knack of making simple musical ideas appear freshly mysterious." Her first stage work, The Black Spider, was a one-act opera which premiered in Canterbury in 1985 loosely based on the short novel of the same name by Jeremias Gotthelf. She has subsequently written one more "micro-opera", three full-length operas, and an opera for television. In 1987, her first half-length opera, A Night at the Chinese Opera, premiered at Kent Opera. This was followed by a further three full-length operas The Vanishing Bridegroom (1990), Blond Eckbert (1994), the latter commissioned by the English National Opera and Miss Fortune (Achterbahn) (2011). In 2005 her opera Armida, an opera for television, premiered on Channel Four in the United Kingdom). The work was made in co-operation with Margaret Williams. Weir's commissioned works most notably include woman.life.song (2000) for Jessye Norman and We are Shadows (1999) for Simon Rattle. In January 2008, Weir was the focus of the BBC's annual composer weekend at the Barbican Centre in London. The four days of programmes ended with a first performance of her new commission, CONCRETE, a choral motet. The subject of this piece was inspired by the Barbican building itself - she describes it as 'an imaginary excavation of the Barbican Centre, burrowing through 2,500 years of historical rubble'.
On 21 July 2011, her first opera for 17 years, Miss Fortune (Achterbahn), premiered at the Bregenz Festival in Austria. It was a co-production with the Royal Opera, Covent Garden, London, and was written in English.
The opera reworks a Sicilian folktale as a contemporary parable. Gerhard R. Koch, writing in the Frankfurter Allgemeine newspaper on 25 July, had these observations:
The music of Judith Weir, who also wrote the libretto for her opera, is neither avant-garde nor experimental but has a highly distilled folkloric style with cantabile voices similar to that of Britten without becoming retrospective. Tonality and atonality are not applied in a strictly antithetical manner, therefore the ideas of the American minimalistsReich and Riley are very present. This music has colour and a rhythmic pulse; it creates characteristic sounds without losing itself in descriptive patterns.
Miss Fortune moved to London in March 2012, garnering at least two negative reviews. Edward Seckerson in The Independent (London) wrote of "Miss Fortune in name and deed" and described the opera as "silly and naive" and "a waste of talent and resources", with a libretto that "vacillates between the banal and the unintentionally comedic (or is that irony?), full of truisms and clunky metaphors" and "about as streetwise as a visitor from Venus". Andrew Clements wrote in The Guardian of "a long two hours in the opera house" with scenes that "follow like cartoonish tableaux, without real characterisation, or confrontation, and without suggesting a dramatic shape", and also criticised the "twee rhyming couplets and inert blank verse" of Weir's libretto.
The American premiere of Miss Fortune was originally planned in 2011 by the Santa Fe Opera to be a part of its 2014 season, but it was announced in the summer of 2012 that the opera was to be replaced by the North American premiere of Huang Ruo's Dr. Sun Yat-sen.
Blond Eckbert Nicholas Folwell (baritone), Blond Eckbert; Anne-Marie Owens (mezzo-soprano), Berthe; Christopher Ventris (tenor), Walther / Hugo / An Old Woman; Nerys Jones (soprano), A bird; Chorus and Orchestra of English National Opera; Sian Edwards (conductor) Collins Classics: CD14612 / NMC: NMC D106
On Buying a Horse: The songs of Judith Weir On Buying a Horse; Ox Mountain Was Covered by Trees; Songs from the Exotic; Scotch Minstrelsy; The Voice of Desire; A Spanish Liederbooklet; King Harald's Saga; Ständchen. Susan Bickley (mezzo-soprano), Andrew Kennedy (tenor), Ailish Tynan (soprano), Ian Burnside (piano) Signum SIGCD087
The Vanishing Bridegroom. Ailish Tynan (soprano), Anna Stéphany (soprano), Andrew Tortise (tenor), Owen Gilhooly (baritone), Jonathan Lemalu (bass-baritone), BBC Singers, BBC Symphony Orchestra; Martyn Brabbins (conductor) - NMC D196