The name Dolce was, according to Grove, commonly used c1600-c1800 for any soft stop, and was thus often indistinguishable from Flauto Dolce and Dolcan. It appears to have always been a flue stop. It was introduced to England in 1741 by Snetzler in his organ at the Parish Church, Chesterfield, Derbyshire, England. Snetzler's Dolce was a soft metal flute. It was then popularized by Schulze, whose organs, according to Bonavia-Hunt, nearly always contained one. All that can be definitively said about the tone of the Dolce is that it is soft and sweet. While Skinner and Irwin insist that it is not stringy, Audsley, Sumner and Wedgwood state otherwise. Bonavia-Hunt and Wedgwood characterize it as fluty; Wedgwood, Sumner and Irwin give it (ideally) a touch of horn quality. Over the centuries stops named Dolce have been constructed of metal, in cylindrical, inverted-conical, and (less often) conical forms, and also of wood. The canonical form, if there can be said to be one at all, is inverted-conical. According to Wedgwood, German builders sometimes gave double mouths to their wooden Dolces. Audsley gives the following scale, stating that the mouth should not exceed 1/5 of the circumference at the mouth, and the cut-up should not exceed 1/4 unless a flutier tone is desired. CCCc1c2c3c4 at mouth3.08"1.89"1.15"0.71"0.43"0.27" at top4.10"2.511.54"0.94"0.58"0.35" According to Bonavia-Hunt, 4' C ranges from 1-3/4" to 2-1/4" at the mouth, with the top of the pipe being 3/2 that diameter, and a mouth that is 2/9 or 1/4 the top circumference. Wedgwood cites Compton's Dolce as having mouth and top diameters at 8' C of 3" and 4" respectively, and at 4' C, 1-3/4" and 2-1/4". The same source gives the scale of a Binns Dolce at 4' C as 2" at the mouth and 3" at the top. The name Dolce has at times been used as a synonym for Dulciana, for a Swell Bourdon borrowed onto the Pedal, and, by Brindley & Foster, for a Swell Rohrflöte borrowed onto the Great. The name Dolciana has other definitions. The illustration reproduced here is Wedgwood's.
Osiris contains over six dozen examples of Dolce, fifteen at 4' pitch, nine at 16', and the rest at 8'. The oldest examples are listed below. No examples are known of Douce, mentioned only by Grove and Williams. Contributions welcome.