Antoine-Joseph "Adolphe" Sax (6 November 1814 – c. 7 February 1894) was a Belgian musical instrument designer and musician who played the flute and clarinet, and is well known for having invented thesaxophone. He also invented the saxotromba, saxhorn and saxtuba.

Biography

Antoine-Joseph Sax was born in Dinant, Belgium. His father, Charles-Joseph Sax, was an instrument designer himself, who made several changes to the design of the horn. Adolphe began to make his own instruments at an early age, entering two of his flutes and a clarinet into a competition at the age of 15. He subsequently studied those two instruments at the Royal Conservatory of Brussels.

Having left the school, Sax began to experiment with new instrument designs, while his father continued to make conventional instruments to bring money into the household. Adolphe's first important invention was an improvement of the bass clarinet design, which he patented at the age of 24. Sax relocated permanently to Paris in 1841 and began working on a new set of instruments exhibited there in 1844. These were valved bugles, and although he had not invented the instrument itself, his examples were so much more successful than those of his rivals that they became known as saxhorns. They range in approximately seven different sizes, and paved the path to the creation of the flugelhorn. Saxhorns are widely used today in concert bands and sometimes in orchestras. The saxhorn also laid the groundwork for the modern euphonium.

Sax also developed the saxotromba family, valved brass instruments with narrower bore than the saxhorns, in 1845, though they survived only briefly.

Saxhorn instruments spread rapidly throughout the world. The saxhorn valves were accepted as state of the art and are largely unchanged today. The advances made by Adolphe Sax were soon followed by the British brass band movement which exclusively adopted the saxhorn range. The Jedforest Instrumental Band formed in 1854 and The Hawick Saxhorn Band formed in 1855, within the Scottish Borders, a decade after saxhorn models became available.

The period around 1840 saw Sax inventing the clarinette-bourdon, an early unsuccessful design of contrabass clarinet. He developed around this time the instrument for which he is now best known, the saxophone, patented on June 28, 1846. The saxophone was invented for use in both orchestras and concert bands. Composer Hector Berlioz wrote approvingly of the new instrument in 1842. By 1846 Sax had designed, on paper, a full range of saxophones (from sopranino tosubcontrabass). Although they never became standard orchestral instruments, the saxophones made his reputation and secured him a job, teaching at the Paris Conservatoire in 1857.

Sax continued to make instruments later in life and presided over a new saxophone class at the Paris Conservatoire. Rival instrument makers attacked the legitimacy of his patents and mounted a long campaign of litigation against Sax and his company. He was driven into bankruptcy in 1856 and again in 1873.

Sax suffered from lip cancer between 1853 and 1858 but made a full recovery. He died in 1894 in Paris and was interred in section 5 (Avenue de Montebello) at the Cimetière de Montmartre in Paris.