Schoenberg's book does indeed, burden the student's time with pages and pages of "philosophizing", which IMHO is a kind euphemism for "rambling". Most chapters are a jumble of loosely related topics. There is precious little discussion about how tonal music *functions". And no musical examples from literature, really none at all. Instead you get permutations of, for example, every kind of seventh chord possible.
However, there are *lots* of critiques and wanderings about aesthetics, beauty, and historical evolution. You may find them delightful. But I've spent a lot of time with them, and in my judgement it was wasted time.
The strength of Aldwell and Schachter is the organization, and the use of musical examples from literature. Neopolitan sixth? Beethoven, Schumann. Applied 7th chords? Mozart. Tchaikovsky. 9ths? Ravel, Debussy. What's so good about this is you can connect the technique in question to actual music.
Everything is built upon logically. Tonic and dominant first. Then substituions and expansions of the dominant. Then we get into inversions. VII is treated separately. iii comes later. Always with an emphasis on function. iii in Major functions differently from III in minor. etc.
There is some validity to the point that the Aldwell/Schachter text is exhaustive at times. But the organization is so strong - you can dive into a topic and really get your head around it quickly. Here is a web page that talks about how to get the most out of it (they don't think you should read cover to cover):
http://www.sfcmtheory.com/essays/harmon ... ngtext.htm
Varadin wrote:Lots of good, but also some inadequate posts on here, especially the one before my post.
I think all the books by Arnold Schoenberg are great and the fact that one has been unable to get something from them doesn't make them bad and a waste of time. This is the way Schoenberg taught his students. And his students include Alban Berg, Anton Webern, John Cage, to name a few. Those books are written by one of the most important 20th century composers; I repeat - by a composer, not just the next theory professor, who easily falls into over-intellectualizing and over-elaborating the matter, ending in teaching you to memorize 'formulas', some of which unessential details, without helping you to form better compositional thinking and understanding of the essential technical principles, which is in the end the most important thing for a composer. Schoenberg's approach is different - far from stiff and dull, more compositional, provocative and intelligent; he makes you think, and not just think, but think more compositionally, so one could greatly benefit from his textbooks. These books have nothing to do with dodecaphony (i.e. the 12-tone method). They are about the classical tonal music from the common practice period... and to the end of the 19th/beginning of 20th century. But bear in mind that there is a lot of text in Theory Of Harmony - sometimes Schoenberg gets overly philosophical, though I find his writing interesting and if you want to dedicate some time, you might find it interesting and useful.
The 600+ pages book called 'Harmony and Voice Leading' is a typical big american book on classical harmony that is fully elaborated with details and dissections, some of which more burdening than essential, but is a good one and the material seems well organized, though I don't like the approach very much. I think the combination of this book with Schoenberg is the best choice.
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