This is the Schirmer edition of the Goldberg Variations (BWV 988) by renown harpsichordist and music scholar Ralph Kirkpatrick. His preface is divided into nine parts:
I - Origin
II - Form
III - The Instrument
IV - Ornamentation
V - Fingering
VI - Phrasing
VII - Tempo
VIII - Dynamics
IX - General Interpretation
Of these the most pages are given to the ornamentation, providing individual treatment of the various types (Appoggiatura, Mordent, Turn, Slide, Trill) and their execution in each of the Variations.
The score/text presented in this edition is "that of the original engraved edition published in Nürnberg by Balthasar Schmid." Furthermore the "slightly inconsistent orthography of trills and mordents has been reduced ... to the system of Couperin." Finally, the "text has been transcribed into modern notation from the frequently changing clefs of the original" and "rests have been added to clarify the voice structure where temporary silences of individual voices are not scrupulously indicated in full by the original."
The Schirmer edition writes out the execution of the ornaments in separate staves above the original score. Similarly, it provides separate staves in certain cases to present "a clearer view of the voice leading."
No fingerings are provided in the score and the measure numbers are given below every fourth measure.
At the very least, this is an excellent edition to follow along while listening and get a sense of some of the musical concerns that go into playing this astounding "piece".