The name Conical Flute is listed only by Irwin, who says: An open metal Flute of 16', 8', or 4' manual pitch, and 16' or 8' pedal pitch. This medium to large scale spotted metal rank sounds with a noticeable fundamental and a strong chord of lower-pitched (easier-to-hear) partials down near the fundamental. The fringe of brightness typical of a cylindrical pipe is removed by this pipe-shape. In the bass range this is a tone-builder; in the high treble it is clean and bell-like; in the middle range it is an ideal Copula, accompaniment Flute, and inconspicuous support for any flue combination. It is not a colorful Flute, but an ideal adjunct for other flues. Irwin lists Flûte Conique as a synonym, and Maclean writes: In modern English and American usage, the Flûte Conique is practically identical with Spitzflöte, although perhaps a shade flutier in quality. There is, however, a different stop that goes by the name Flûte Conique.
All known examples of Conical Flute are given below.