For lever or pedal harp.
This PDF, subtitled Harmony for Every Harpist, covers the fundamentals of harmony and the structure of scales for both lever and pedal harps. It includes triads, inversions, the I-IV-V progression in scale-wise movement, chromatic scales, and the Circle of Fifths. All examples are fully notated in eight keys. 58 pages, total.
An added bonus is that Ray has set up the Table of Contents so that there are links that will take you to a specific chapter. As Ray told me, If someone wants to study F Major, from the page 3 list, they just click on "F" and they will go immediately to page 23. Or, if they want to see the chart of "Circle of Fifths," give it a click and they'll go right to Appendix III on page 55.
On page 4 of the PDF, you'll find a link to the 14 minute video (see below) where Ray explains the graphics from the book, and offers short descriptions and demonstrations of the elements being studied.
This product is a PDF file, to be downloaded to your computer. We do not sell it as regular printed music. It is only available here in this PDF download format.