Adolphe Sax patented his brass reed hybrid on 28 June 1846
The saxophone is a single-reed woodwind with a conical brass body: a mouthpiece reed launches the wave while keys open and close tone holes to retune the tube. Belgian maker Adolphe Sax designed it in the early 1840s and patented it on 28 June 1846 after moving his workshop from Brussels to Paris in 1842.
Sax planned two families of seven—C/F and Bb/Eb—but Bb and Eb instruments won out. Today’s common voices are Bb soprano, Eb alto, Bb tenor, and Eb baritone; sopranino and bass mainly join large choirs. All share treble-clef transposed notation and identical fingerings, so written notes transfer across sizes. He wanted octave overblowing like a flute, unlike the clarinet’s twelfth, marrying brass projection to woodwind agility after his bass-clarinet improvements. Born in Dinant and trained as a flautist and clarinettist, Sax also built the ophicleide, a large conical brass instrument. His 15-year patent covered fourteen versions ranging from sopranino to contrabass, and an octave key on the finished horn lifts the lower notes by a full octave. In a 1972 study where players ranked mouthpieces from dark and mellow to edgy and bright, the darkest produced a strong fundamental with energy bunched in the low harmonics.
Bodies start as worked sheet brass; key cups and mechanisms use other brass stocks, with steel rods and springs, felt or cork buffers, and plastic or mother-of-pearl touchpieces. Clear or tinted lacquer fights oxidation; silver or gold plating appear on premium models. King and later Yanagisawa even offered sterling silver necks, bells, or whole horns. Alto and larger horns add a detachable neck and U-shaped bow; sopranos often stay straight.
Reeds are usually Arundo donax, sometimes composites since mid-century, sized per instrument and cut differently from clarinet reeds. Mouthpieces in hard rubber, metal, or exotic materials reshape timbre more by geometry than by folklore about materials—Larry Teal argued dimensions dominate. From military bands and classical solos to jazz combos and pop horn sections, Sax’s hybrid became one of the most recognisable silhouettes in modern music.
Source: Saxophone
