with not only the defining architectural modification to make the euphonium distinct from other tenor horns, but with choosing its name. As the tale set forth occurs in 1857–58, after the word had already been in use, this is open to some question. What is known is that after visiting the Paris exposition of 1857, Phasey began playing a baritone saxhorn made by the Antoine Courtois company. He modified the horn and ultimately devised a way of enlarging the bore while not compromising the pitch. This conical expansion of the baritone saxhorn, a cylindrical bugle or post-horn type bore, is the defining element that separates a true euphonium from a baritone horn. Career Alfred Phasey began his musical career in the Band of the Coldstream Guards. While there, he became an accomplished euphonium artist and wrote an instructional method for the instrument. He also wrote one for trombone. Other groups with which he performed included the Crystal Palace Orchestra, on multiple instruments, from 1862 until 1888 and as a guest member of the private band of her majesty Queen Victoria. He performed as solo euphonium with the Blues and the Royals. As a touring virtuoso, he was a part of the "Courtois Union" for many years, playing on and promoting the company's instruments. As a soloist, he was regarded by musical celebrities of his day such as Giuseppe Verdi as without equal on the euphonium. Alfred Phasey also was employed as a bandmaster. He served in that role with the St George's 6th Middlesex Rifle Volunteers Band from 1868 to 1872. The Crystal Palace Company employed him to lead Phasey's Band, a popular music group, from 1879 until 1882, at which point they returned to financing strictly military bands. He served as the bandmaster of the Earle of Chester's Yeomanty Cavalry band from 1873 to 1888. His written works included the 1860 Fantasia on Verdi's opera Attila, for Euphonium or Ophicleide and Pianoforte, the 1858 Instruction Book for Euphonium, and the 1858 Popular Instruction Book for Trombone. References British conductors (music) British male conductors (music) Euphonium players British trombonists Male trombonists British military musicians 1888 deaths 1834 births Coldstream Guards soldiers British Yeomanry soldiers People from Pimlico 19th-century conductors (music)