Invention in C “Intervention #16" for Celtic Harp

The Invention in C Major was conceived as a companion piece to the Invention in A minor Op. 22. Like the Invention in A minor, this composition was written at the suggestion of composer Jerry Grant as a study of Bach’s 15 Two-Part Inventions for keyboard. Like the A minor Invention the piece quickly modulates (one of the characteristics of Bach’s compositional style) through through G Major, D Major, and A minor, E minor, A Major, and F Major before ending on the initial key of C Major.

The piece ends with a Picardy third. The Intervention was originally written for piano but alternatives have been created for harpsichord as well as harp.

Bach’s inventions were studies in “fugal” contrapuntal techniques some in canonic style using alternating tonic and dominant. As with Bach’s first Invention (written in C Major), the current “invention” is written in C Major in canonic style. The term “Intervention” was used as the title of this piece in a rather tongue-in-cheek statement to note that I cannot begin to have the genius of Bach as well as to state that after writing 15 Inventions, Bach definitely needed an “Intervention."

The current piece was mastered with Logic Pro X (version 10.32) employing a Celtic sound set from Logic Pro.