Philip Arnold Heseltine (30 October 1894 – 17 December 1930), known by the pseudonym Peter Warlock, was a British composer and music critic. The Warlock name, which reflects Heseltine's interest in occult practices, was used for all his published musical works. He is best known as a composer of songs and other vocal music; he also achieved notoriety in his lifetime through his unconventional and often scandalous lifestyle.

As a schoolboy at Eton College, Heseltine met the British composer Frederick Delius, with whom he formed a close friendship. After a failed student career in Oxford and London, Heseltine turned to musical journalism, while developing interests in folk-song and Elizabethan music. His first serious compositions date from around 1915. Following a period of drift and inactivity, a positive and lasting influence on his work arose from his meeting in 1916 with the Dutch composer Bernard van Dieren; he also gained creative impetus from a year spent in Ireland, studying Celtic culture and language. On his return to England in 1918, Heseltine began composing songs in a distinctive, original style, while building a reputation as a combative and controversial music critic. During 1920–21 he edited the music magazine The Sackbut. His most prolific period as a composer came in the 1920s, when he was based first in Wales and later at Eynsford in Kent.

Through his critical writings, published under his own name, Heseltine made a pioneering contribution to the scholarship of early music. In addition, he produced a full-length biography of Delius and wrote, edited, or otherwise assisted the production of several other books and pamphlets. Towards the end of his life, Heseltine became depressed by a loss of his creative inspiration. He died in his London flat of coal gas poisoning in 1930, probably by his own hand.

Leonard Constant Lambert (August 23, 1905 – August 21, 1951) was a British composer and conductor.

 Early life
Lambert was the son of Russian-born Australian painter George Lambert. Educated at Christ's Hospital and the Royal College of Music, Lambert was a prodigy, writing orchestral works from the age of 13, and at 20 received a commission to write a ballet for Serge Diaghilev's Ballets Russes (Romeo and Juliet). For a few years he enjoyed a meteoric celebrity, culminating in the broadcast and concert performances of his Rio Grande for piano solo, chorus and orchestra. A recording survives with Hamilton Harty as the soloist and the Hallé Orchestra conducted by the composer.

[edit] Career
During the 1930s, his career as a conductor took off with his appointment with the Vic-Wells ballet (later the Royal Ballet), but his career as a composer stagnated, and after the disappointing reception of his major choral work Summer's Last Will and Testament (after the play of the same name by Thomas Nashe), which proved unfashionable in the mood following the death of the King (George V) he considered he had failed as a composer, and completed only two major works in the remaining sixteen years of his life. Instead he concentrated on conducting, and appeared at Covent Garden and in BBC broadcasts, and accompanied the ballet in European and American tours.

The war took its toll of his vitality and creativity, and his health declined with the development of diabetes which remained untreated for years owing to his fear of doctors, stemming from childhood.

Lambert was famous in his day as a raconteur and, unusually for an Englishman, as an expert on many different arts, and on modern European culture. He was also one of the first "serious" composers to understand fully the importance of jazz and popular culture in the music of his time. This is illustrated by his book Music, Ho! (1931), subtitled "a study of music in decline" , which remains one of the wittiest, if highly opinionated, volumes of music criticism in the English language. He was at the centre of a brilliant literary and intellectual circle including Michael Ayrton, Sacheverell Sitwell and Anthony Powell, and despite Powell's denial, he is often said to be the prototype of the character Hugh Moreland in Powell's A Dance to the Music of Time.

As a conductor he had an instinctive appreciation of Liszt, Chabrier, Waldteufel and romantic Russian composers, and made fine recordings of some of their works. However, it was only when his health was declining that his career had a chance to flourish with the development of the BBC Third Programme and the Philharmonia Orchestra, having struggled for many years to extract vital performances from second-rate ensembles.

[edit] Personal life
He was married to Isabel Nichols, an artist, in 1947. After Constant Lambert's death, Isabel married Alan Rawsthorne. Constant also had a child Kit Lambert who was born in 1935.

[edit] Later life
Lambert died on 21 August, 1951, two days short of his forty-sixth birthday, of pneumonia and undiagnosed diabetes complicated by acute alcoholism, and was buried in Brompton Cemetery, London.[1]