The Aeoline is a string stop of very soft tone; the softest string tone in the organ, according to Audsley (but see Echo Aeoline). It is usually found at 8' pitch, but 4' and 16' examples are sometimes found. As a flue stop it first appeared around 1820 in Germany, and soon became popular in Germany, Switzerland and America in both large and small instruments. The names Aeolina, Aeoline and Äoline have also been used for a reed stop; see Aeoline Reed. Irwin gives a different definition for Aeolina Different sources variously describe the Aeoline as belonging to the Gamba, Salicional, or Viol family. The degree of �stringiness� varies between different examples, being more stringy in German examples, according to Maclean. Audsley considers it an Echo Salicional or, if voiced with a more stringy tone, an Echo Viola da Gamba. Bonavia-Hunt and Wedgwood mention Echo Salicional without reference to the Aeoline, but without any description whatsoever. In the absence of further information, we consider them to be synonyms. According to Maclean, Casavant sometimes used the name Dolcissimo for their Aeolines. The Aeoline is often used as one rank of a celeste. Audsley and Locher claim that it is often used with the Voix Celeste, though that stop is usually intended for use with the louder Salicional.

Aeoline Céleste

Aeoline 8', Manual II; Basilika Maria-Treu, Vienna, Austria; Buckow 1858. This is the oldest known example of this name used as a flue. Aeoline 8', Swell; BPOE (Elks) Lodge, Adams, Massachusetts, USA; Steere & Turner 1872. Aeolian 8', Solo and Echo; Bute Hall, University of Glasgow, Glasgow, Scotland; Lewis 1905. This is the only known example of this name. Aeolina 16', Choir; South Congregational Church, Boston, Massachusetts, USA; Hook 1864. Aeolina & Bourdon 16', Choir; Mechanics Hall, Worcester, Massachusetts, USA; Hook 1864 (restored 1982).

Aeolina 8', Swell; First (Old South) Presbyterian Church, Newburyport, Massachusetts, USA; Hook 1866. Aoline 8', Swell; Holy Cross Cathedral, Boston, Massachusetts, USA; Hook 1875. Aoline 8', Swell; Federated Church, Sycamore, Illinois, USA; Wicks c1970. Eolina 16', Choir; First Congregational Church, Woburn, Massachusetts, USA; Hook 1860. This is the oldest known example of this name. Eolina 8', Organo Terzo; St. Luke's Chapel, Greenwich Village, New York City, New York, USA; Moller 1930.

Eolina 8', Manual I; Morelia Cathedral, Michoacan, Mexico; Walcker 1905. This stop was apparently named Aeoline by Walcker, and renamed by Tamburini in a 1960 rebuild. Eoline 4', Solo; Basilica del Santisimo Sacramento, Buenos Aires, Argentina; Mutin-Cavaillé-Coll 1912. Eoline 8', Recit; St. Joseph, Bonn, Germany; Oberlinger 1981. Eoline 8', Antiphonal; St. Andrews Presbyterian Church, Newport Beach, California, USA; Casavant 1985. Echo Salicional 8', Swell; Winchester College, Winchester, England; Norman & Beard 1908.

Echo Salicional 8', Swell; Washington Irving High School, New York City, New York, USA; Moller 1919. Echo Salicional 8', Swell; Marchmont House, Greenlaw Borders, Scotland; Hill, Norman & Beard 1919. Echo Salicional 8', Swell; King's College, Cambridge, England; Harrison & Harrison 1934. Echo Salicional 8', Antiphonal; Gaston Avenue Baptist Church, Dallas, Texas, USA; Wicks 1950.