William Mathias CBE (1 November 1934 – 29 July 1992) was a Welsh composer.
Mathias was born in Whitland, Carmarthenshire. A child prodigy, he started playing the piano at the age of three and began composing at the age of five. At Aberystwyth University Mathias was a member of the Elizabethan Madrigal Singers and wrote 'Gloria in Excelsis Deo' for them in 1954. He studied at the Royal Academy of Music under Lennox Berkeley, where he was elected a Fellow in 1965. In 1968, he was awarded the Bax Society Prize of the Harriet Cohen International Music Award. He was professor of music and head of department in the University of Wales, Bangor, from 1970 until 1988.
His compositions include large scale works, including an opera, The Servants (1980), three symphonies and three piano concertos. Much of his music was written for the Anglican choral tradition, most famously the anthem Let the people praise Thee, O God written for the July 1981 royal wedding of the Prince and Princess of Wales, which had a television audience of an estimated 1 billion people worldwide.
Mathias wrote his Sinfonietta – initially called Dance Suite – for the Leicestershire Schools Symphony Orchestra (LSSO) in late 1966, and it received its first performance at Leicester De Montfort Hall during the 1967 Schools Festival. It was also included in the orchestra's tour programme for Denmark and Germany later in the year. The LSSO made the first commercial recording of Sinfonietta for the Pye Golden Guinea label in July 1967 under the direction of the composer (see external links below).
He founded the North Wales International Music Festival in St Asaph in 1972 and directed it until his death, aged 57, in 1992.
He is buried outside St Asaph Cathedral, at St Asaph, Denbighshire, North Wales.
All Thy Works Shall Praise Thee for choir and organ Op.17bSaint Teilo Cantata for narrator, contralto and tenor solo, boys' and girls' choirs, mixed chorus, organ and chamber orchestra, Op.21 (Commissioned by and premièred at the 1963 Llandaff Cathedral Festival)Make a joyful noise Op.26 no.2Festival Te Deum for choir and organ Op.28 (1964)O Sing Unto the Lord for choir and organ Op.29Three Medieval Lyrics for choir and instrumental ensemble Op.33An Admonition to Rulers Op.43Psalm 150 for choir and orchestra Op.44Lift Up Your Heads, O Ye Gates Op.44 no.2 (1969)Ave Rex Op. 45Sir Christemas (Part of Ave Rex Op.45)O Salutaris Hostia for male voices Op.48Bless the Lord for choir and organ Op.51Gloria for male voices and organ Op.52Jesus College Service, Op. 53 (1970)A Babe is Born, Op.55 (1971)Alleluya Psallat for choir and organ Op.58Elegy for a Prince for voice and orchestra Op.59A Vision of Time and Eternity for contralto and piano Op.61Ceremony After a Fire Raid for choir, piano and percussion Op.63Missa Brevis for choir and organ Op.64 (1973)This Worlde's Joie Op.67 (1974)Missa Brevis (1973)Ceremony after a Fire RaidJonahThe Fields of Praise for tenor and piano Op.74A Royal Garland for choir Op.77Nativity Carol Op.77 no.3 (part of A Royal Garland)A May Magnificat for choir and bells Op.79 no.2Shakespeare Songs for choir and piano Op.80Songs of William Blake for voice, harp, piano, celesta and string orchestra Op.82Rex Gloriae for choir Op.83 (1980)Te Deum for soprano, mezzo-soprano, tenor soli, choir and orchestra Op.85Let the People Praise Thee O God for choir and organ/ orchestra Op.87Lux Aeterna Op.88 (no.1)All Wisdom is from the Lord for choir and organ Op.88 no.3 (1982)Salvator Mundi for SSA, piano duet, percussion and strings Op.89O Be Joyful in the Lord for choir and organ Op.90 no.2 (1983)Let Us Now Praise Famous Men for choir and organ/ orchestra Op.91 no.2Missa Aedis Christi (in Memory of William Walton) for choir and organ Op.92The Echoing Green for SSAA Op.95 no.2Veni Sancte Spiritus for choir, organ, 2 trumpets and percussion Op.96Let All the World in Every Corner Sing Op.96 no.2Rejoice the Lamb for choir and organ Op.99 no.1In excelsis Gloria for choir a cappella (1954, revised 1991)Cantate Domino for choir and organ (1987)Riddles (1987)As Truly as God is our Father for choir and organ (1987)Sweet was the Song for choir and organ (1988)Jonah: A Musical Morality for baritone and tenor soli, semi chorus, choir, and orchestra (1988)O Aula Nobilis for SSAA, trumpets, percussion, and piano duet (1989)World's Fire for soprano and baritone soli, choir and orchestra (1989)Let the People Praise Thee, O God, for the wedding of Prince Charles and Lady Diana Spencer, Op.87 (1981)Learsongs (1989)Bell Carol for choir, brass, percussion and organ (1989)The Doctrine of Wisdom for choir and organ (1990)Ave verum corpus for choir and organ (1992)The Servants Op.81 (1980) Libretto by Iris MurdochPiano Concerto No.1, Op.2Divertimento for String Orchestra, Op.7 (1958)Piano Concerto No.2, Op.13Music for Strings, Op.14Dance Overture, Op.16 (1961)Invocation and Dance, Op.17 (1961)Serenade for Small Orchestra, Op.18 (1963)Prelude, Aria and Finale for String Orchestra, Op.25 (1964)Concerto for Orchestra, Op.27Symphony no. 1, Op.31 (1966)Sinfonietta, Op.34 (1967)Litanies, Op.37Piano Concerto No.3, Op.40 (1968)Festival Overture, Op.42Harp Concerto, Op.50 (1970)Intrada, Op.54 (1971)Harpsichord Concerto, Op.56Holiday Overture, Op.57Celtic Dances, Op.60 (1972)Laudi, Op.62 (1973)Clarinet Concerto, Op.68 (1975)Vistas, Op.69 (1975)Dance Variations, Op.72Melos, Op.73Vivat Regina, Op.75 for brass bandHelios, Op.76 (1977)Requiescat, Op.79 (1977)Reflections on a Theme of Tomkins, Op.86Symphony No. 2, Op.90 (Summer Music) (1983)Organ Concerto, Op.91 (1984)Horn Concerto, Op.93 (1984)Anniversary Dances, Op.95Oboe Concerto (1989)Threnos (1990)Symphony No. 3 (1991)In Arcadia (1992)Violin Concerto (1992)Symphony no. 4 (1992, unfinished)Divertimento, Op.1 for violin and ViolaSonatina for clarinet and piano, Op.3Violin Sonata No.1, Op.15Wind Quintet op. 22 (1963)Divertimento, Op.24 for flute, oboe and pianoPiano Trio, Op.30String Quartet No.1, Op.38Concertino, Op.65 for flute, oboe, bassoon and harpsichordZodiac Trio for Flute, Viola and Harp, Op.70 (1976)String Quartet No.2, Op.84Violin Sonata No.2, Op.94Sonatina for Flute & Piano Op. 98 (1953, revised 1986)String Quartet No.3 (1987)Soundings for brass quintetSummer Dances for brass quintet"Suite for Trumpet and Piano Op.4" (1956)Improvisations for Harp Op.10 (1960)Piano Sonata no.1 Op.23 (1963)Piano Sonata no.2 Op.46 (1969)Sonata for Harp Op.66Santa Fe Suite for harp (1988)Toccata alla Danza for piano (1961)Prelude, Elegy and Toccata (1954)Partita Op.19 (1962)Variations on a Hymn Tune Op.20 (1962)Postlude (1962)Processional (1964)Chorale (Easter 1966)Invocations Op.35 (1967)Toccata Giocosa Op.36 No.2 (1967) Dedicated to Sir David Willcocks on the occasion of his Inauguration of the new organ at The Royal College of Organists, 7 October 1967Jubilate Op.67, No.2 (1974) Dedicated to Michael SmytheFantasy Op.78 (1978)Canzonetta Op.78 No.2 (1978)Antiphonies Op.88 No.2 (1982)Berceuse Op.95 No.3 (1985)Recessional Op.96 No.4 (1986) Dedicated to Christopher Morris, musician, publisher, friendFanfare (1987)Carillon (1989)Fenestra (1989)