LPR: Enumerate the three primary transformations of a Triad

[FL03]

LPR transformations are a set of pre-defined rules describing the manner in which a triad may be transformed. Depending upon which transformation is being applied, the transformation shifts a particular chord factor; which chord factor being adjusted is determined by the interval between the root and third chord factors.

Leading (L)

Parallel (P)

Parallel transformations are the simplest, modifying the third factor while leaving the root and fifth factors unchanged; this process turns a major triad into a minor and vise versa.

For example, applying a single parallel transformation to an F major triad gives us an F minor triad.

Relative (R)

A relative transformation affects
The relative transformation exchanges a triad for its relative major or minor.

In a major triad, it takes the fifth up a whole step up to become the root of a minor triad.

In a minor triad, it takes the root down a whole step to become the firth of a major triad.