Sopranino saxophone

The sopranino saxophone is the second-smallest member of the saxophone family. It is tuned in the key of E♭, and sounds an octave higher than the alto saxophone. A sopranino in F was also described in Adolphe Sax's patent, an octave above an F alto (mezzo-soprano), but there are no known built instruments.

The sopranino saxophone has a sweet sound and although it is one of the least common of the saxophones in regular use today, it is still being produced by saxophone manufacturers Orsi and Rampone & Cazzani in Italy, Henri Selmer Paris, and Yanagisawa of Japan. Due to their small size, sopraninos are usually built straight like a clarinet, although Orsi make both straight and curved sopraninos, with the appearance of a miniature alto.

The original patented saxophone family, as developed by Adolphe Sax, included E♭ and B♭ saxophones in the voices of sopranino, soprano, alto, tenor, baritone, bass, contrabass, and subcontrabass instruments, and the same seven in the keys of C and F, though only the soprano, alto, and tenor were ever made. Since the late 1990s the soprillo, an even smaller piccolo saxophone tuned in B♭ a fifth above the sopranino, was developed by the German instrument maker Benedikt Eppelsheim.

The sopranino saxophone is a transposing instrument, with the same written range as any saxophone, from B♭$3$ to at least F$6$. Sounding a minor third higher than written, like an E♭ clarinet or soprano cornet, this range corresponds to D♭$4$ to A♭$6$ in concert pitch.

Repertoire
In classical music, the most notable use of the sopranino saxophone is in French composer Maurice Ravel's orchestral work Boléro. Ravel's score calls for a "soprano saxophone in F", but it is likely no such instrument has ever been built; the part is usually performed on E♭ sopranino or B♭ soprano.

In recent years, rock band Violent Femmes have incorporated sopranino saxophone into the band's live performances as well as their newest albums. Saxophonist Blaise Garza plays a curved sopranino saxophone in the Violent Femmes' 2019 song "I'm Not Gonna Cry". Outside of classical and rock music, notable jazz and improvising musicians using this instrument include Carla Marciano, James Carter, Anthony Braxton, La Monte Young, Roscoe Mitchell, Christophe Monniot, Joseph Jarman, Paul McCandless, Lol Coxhill, Roger Frampton, Hans Koller, Wolfgang Fuchs, Douglas Ewart, Larry Ochs, Vinny Golia, Thomas Chapin, Martin Archer, Jon Irabagon, Massimo Falascone, Gianni Gebbia, and Ian Anderson (credited with having played the instrument on the Jethro Tull albums A Passion Play and War Child). The sopranino saxophone was also used in the six-member Nuclear Whales Saxophone Orchestra, played by Kelley Hart Jenkins.