This document examines Frank Ferko's unique setting of the ancient Latin sequence, Stabat Mater that incorporates five English interpolations dealing with the subject of parental grief over the loss of a child. The twenty Latin stanzas and five English interpolations are examined harmonically and philosophically, as two separate works. The tonal architecture of the work, outlined in two large arches built on key relationships, is explored in the body of the paper in addition to a graphic depiction and table of key centers. The interrelationship between key centers and textual considerations is examined. An extensive interview with the composer provided invaluable information regarding the creative process as it relates to the choice of English texts, compositional techniques and influences, and the stylistic musical diversity that characterizes the work. Three prominent American conductors, who have conducted significant performances Stabat Mater discussed specific problems and solutions in preparing and performing the work. Data pertaining to Stabat Mater history and other settings was gathered from reference materials, periodicals, and internet sources.