Suite in D for baroque flute (mp3)

The following description is about a musical composition requested by a flautist named Dr. Robert David Billington. The piece is performed by him using an imitation of a Heinrich Grenser flute from the late 1700s, crafted by Richard Hahn, and made out of ebony. This musical piece is played at a frequency of 415 hz, which is akin to Ab in contemporary pitch. The composition is constructed in four parts, predominantly in D major, except for the second movement which is in D harmonic minor. The pattern of the composition follows a Slow-Fast-Slow-Fast rhythm and each section concludes with the note 't'.