David Beardsley wrote, in Onelist Tuning Digest # 206, message 9:

So what does your book offer that one can't already find in the writings of Partch, Helmholtz or Doty? Or even a trip to the library wouldn't dig up?

Primarily, a comprehensive collection of lattice diagrams illustrating historical tuning systems and harmonic gestures, from c. 400 BC to 1999 AD, along with my prime-factor adaptation of regular staff-notation to notate these systems.

Partch and Helmholtz devote a lot of space to experimental investigations and other aspects of acoustics and composition which are not specifically descriptive of tuning systems. For instance, Helmholtz describes his experiemental apparatus and Partch describes his instruments and the dramatic aspects of his compositions, all of this in great detail. And Partch's primary concern was with his own single ~43-tone system of Monophony; when he does explain historical systems, he generally presents them as subsets or adjustments of his own system.

Doty's book is intentionally limited in scope to suit beginners, and, altho still quite extensive (and probably the best introduction to the subject), it doesn't cover anywhere near as many specific tuning systems as my book.

None of them give analyses of specific pieces or gestures (with the two exceptions of Partch's 'modulation' and 'tonality flux' explanations), which I do.

This last point is especially important. As many of us here have argued, theory divorced from actual music is rather pointless. (Boethius's opinion notwithstanding). Partch certainly emphasizes that fact, but he still doesn't give analyses of his harmonic practice, except the very sketchy examples of 'tonality flux' mentioned above.

As far as a trip to the library: if you live in or near New York (as you do), go for it - there's a lot there.

But away from New York, I've had a LOT of difficulty finding the information I was researching, even in large cities like Philadelphia (surprisingly, especially considering all the good university libraries here), Phoenix (even with a brand new and very good central library), and San Diego (LOL here). [that means 'laugh out loud' for those who don't know]

On that last point, I find it shameful that the city where both Partch and Darreg spent the last years of their lives has such a poor representation in its libraries of anything concerned with their work (or of anything, period, for that matter).

And believe me, I've done some serious digging. People living in more rural areas will generally have even greater difficulty.

(Are any civic administrators listening to me? University librarians? Perhaps you, gentle reader, can write or email your preferred library about stocking books on microtonality. Give them specific titles to order.)

I know that for a lot of New Yorkers, the universe ends at the Hudson River, or perhaps somewhere in New Jersey and Long Island. But lots of microtonal folks live out here in the hinterlands, and I suppose we suffer accordingly.

OK, enough ranting about libraries...

Besides, my particular lattice design, which is different from all the others, isn't available anywhere else, except here on my website, and on the Tuning List.

Much of the historical information in my book is based on the systems analyzed by those three authors, but my objective was to diagram those ratios all from the same 'perspective' (i.e., from the same 1/1), to gain an understanding of how the different systems in toto relate to each other.

In addition, there is much new information added stemming from Barbour, Journal of Music Theory, Perspectives of New Music, Xenharmonikon, and from my own interaction and correspondence with contemporary theorists and composers.

I've also been able to take advantage of several recent English translations of such classic treatises as those of Aristoxenus, sectio canonis, Nicomachus, Ptolemy, Boethius, musica enchiriadis, Hucbald, Guido d'Arezzo, Marchetto, Prosdocimus, Zarlino, Riemann, and Schoenberg.

(In particular, I've gathered so much information about Schoenberg that I've decided to write an entire second book exploring in more detail his theories and the work of his students and predecessors - which is only natural, since I admire Mahler so much, and I dig Webern a lot too.)

The book grew out of my frustration in dealing with ratios of very large numbers in Partch and Helmholtz, and most of it was finished before I ever saw Doty's book, which does have a fair amount of the same information (in particular, his use of lattices, which are, however, a bit different from mine).

Another thing you won't find anywhere else (except my website): I have a few very speculative theories on possible examples of higher-prime systems at earlier dates than those usually cited - readers of this list will already be aware of these (one example is that of Boethius which I just mentioned yesterday, another is Marchetto of Padua).

In addition, I explore blues and rock music styles (for example, Louis Armstrong, Robert Johnson, Etta James, Jimi Hendrix) which, to my knowledge, have never been subject to extensive microtonal analysis before, excepting Sims's work on Armstrong. (Note that all these artists were African-American, which may or may not be significant - at any rate, there's certainly a gap in the understanding of microtones in African-American music, which I hope to fill at least partially.)

Also, the work of several contemporary composers and theorists - for example, Erv Wilson, Ben Johnston, Lou Harrison, Ezra Sims, Terry Riley, Johnny Reinhard, Denny Genovese, Sasha Bogdanowitsch, David Beardsley : ) - is included, which obviously was impossible for Helmholtz and Partch, and which lie outside the scope of Doty's introductory Primer.

To a large extent, the differences may be summed up with the statement that Partch and Helmholtz argued polemically in favor of their JI or tempered systems, and Doty explains and illustrates more-or-less basic concepts and ends there, whereas I've assumed what all three of them said as given, expanded from there, and tried to find underlying principles of unification.

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