Being the first edition of the Hexadic book, we’ve noticed a few things that will be changed in future printings. One mistake was found by our friend Phil Legard, though, and really needs to be fixed now. We plan on making a separate, limited edition and numbered Errata sheet and making sure people who have purchased the book get this card for free. In addition, the information change will be on this page as well. (NOTE  – These changes are for the first printing of the Hexadic Book only. These have been corrected in the second printing).


Page 8, first paragraph, should read – “For example in the case of a diatonic scale in the key of F#, if we begin with a (heart), the last three cards (including the octave) will be J(hearts) – A(diamonds) – 2 (diamonds). If we begin with (diamonds) we get J(diamonds) – A(clubs) – 2 (clubs).


Page 10 – should read – Using this method gives the same cards for any key –

Major: Q/K – 2 – 4 – 5 – 7 – 9 – J


Page 14 (correction comes courtesy of the good eyes of Steve Kent) should read –

“Thus, B2 denotes the tone of B in the second octave. If in standard tuning, this could be played on the 4th string, 9nd fret.”

Where before it said 6th string, 7th fret (which would be a B1)


The diagram on Page 64 is incorrect and the example following the diagram uses the wrong cards in addition to the language not being very clear. The following is the correct diagram and example:

For our example, we end up with the following progression:


correct progression


Once we have determined the interval card, we use it to label the active field, as it denotes the exact interval that determines the field. Thus 8♣E = Arm E with the 8♣ as the interval card.

Note that for the second tonal field, the time card (located at the 90° mirror fold from the interval card) is a J♦. Since we determined at the beginning of the laying out of the Hexadic Figure that Jacks would equal 4, the number of quarter beats for this tonal field is four. Furthermore, as the Jack is a red card, the progression continues four counts from the interval card’s position (5♦I), which leads us to the third tonal field (9♦II). The 4th tonal field in our example (3♣C) has a time card of 10♣. As this is a black card, the progression stops here.