Showing posts with label scale. Show all posts
Showing posts with label scale. Show all posts

Saturday, March 1, 2014

Form in Post-Tonal Music (Questionnaire answers: #1)

Inspired by a presentation by Jocelyn Morlock at this year's Newfound Music Festival, I asked several questions about musical form in my previous blog post, in part to engender a dialogue on the topic — I am genuinely interested in learning how other composers think of this — and in part to get my students to think about it. Musical form is a topic of interest to all composers.

Because of my propensity towards long-windedness, I have decided to answer the questions posed in my previous post in separate blog entries.  Here is the first question:

1. On a scale of 1 (low) to 10 (high), how important is form in musical composition, and why?
It's tempting to enthusiastically jump up and shout "10," with at least three exclamation marks (of critical importance, ladies and gentlemen!!!), and then wait for the applause to die down, but, when both great and not-great composers used the same forms, such as sonata, and rondo, is this justified?
Haydn, Mozart, and Beethoven all used sonata form extensively.  So did virtually all European composers, good or bad, from about 1770 to 1900, including Fernando Sor.
Fernando who, you may ask? If you are not a guitarist, you have probably never heard of him, and for good reason: Sor was a competent composer of mainly guitar music, who lived from 1778 to 1839. 
His life overlapped with Beethoven's (b. 1770) and Schubert's (b. 1797), but, to use a baseball analogy (because spring training has now started!) if Beethoven and Schubert were major-league all-stars and first-ballot Hall-of-Famers, Sor was a useful guy to have on the team, ready to contribute if any of the A-listers became injured or needed days off, but who probably spent a lot of time on the bench. If you don't follow baseball and have no idea what I'm talking about, my point is that history has been kind (deservedly) to Beethoven and Schubert, but not so kind (deservedly?) to Sor.
He was reputed to be an excellent guitarist, however…
I mention Sor because, as a guitarist, I played some of his music during my youth. It is well-written for the guitar, and it has pleasing moments, but it never came close to moving me as profoundly as the music of Bach, Beethoven, Mozart, Charlie Parker, The Beatles, and many others. 
Here's an excellent performance of Sor's Sonata in C, op. 22, first movement. In my playing days, I practically — nay, definitively owned this piece! Yeah! (By this I mean that I purchased a copy.) I also performed it, although of course I did not play it very well… Have a listen, and see what you think:

An excellent performance, is it not? (I fail to understand the decision to repeat the exposition, however; once through strikes me as plenty!) But as a composition, I am not sure that any theorists or musicologists would suggest that it is at the level of the three classical-period "greats," Haydn, Mozart, and Beethoven. I certainly don't.
Why is that, you might ask? Well, I will suggest that the weakness is not the large-scale form, which does all the things a good sonata form composition is supposed to do. To wit:

  • It opens with a declamatory, attention-grabbing, first theme, and
  • follows it with another tonic-area theme. 
  • The transition modulates to the dominant, as is the norm, and 
  • even has a clever, unexpected tonicization of the chromatic mediant (Eb) along the way. 
  • This tonicization of Eb sets up a dominant pedal point on D, but it hints at the dominant minor (Gm), not the major minor (G); this (hinting at the dominant minor) is fairly common in Mozart and Beethoven, but nevertheless a clever thing to do.
  • The second theme-group includes several themes, each of which is pleasant enough, and it concludes with a codetta. All good!
  • The development is skillfully handled, and is neither too short, not too long, finishing with a dominant pedal point in the home key, as most developments do. 
  • The recapitulation is also handled competently, but has no surprises (which isn't inherently problematic; Haydn/Mozart/Beethoven wrote many recapitulations that held no real surprises).

In short, Fernando Sor clearly knew what he was doing when it came to form. Despite this, history has relegated him to minor position in relation to the "great" composers.  
This suggests to me that there must have been more to the greatness of Haydn, Mozart, and Beethoven than their handling of form, and that [DISCLAIMER: PLEASE MAKE SURE YOU ARE SEATED BEFORE CONTINUING TO READ] form is perhaps not the most important aspect of a musical composition!
However (he added, back-pedaling quickly!), one of the reasons we love to study Beethoven is that he did things with standard forms that were often unexpected, or even unprecedented (c.f. "Waldstein" Sonata, op. 53, I)!  
One of the best ways to evaluate composers as "musical architects" (a term sometimes used in reference to a composer's structural design (i.e., form) in a composition) is to compare the following sectioins of their sonata-form compositions: 
  •   Transitions in the exposition and in the recapitulation; 
  •   Development sections; 
  •   Codas; and
  •   Any other aspects of form that are unexpected.
Haydn deserves huge credit for the development of classical sonata form (influenced in part by C. P. E. Bach), and both Mozart and especially Beethoven often did some surprising things in the sections listed above. I would love to teach an upper-level course on just Beethoven's codas, or, more generally, classical transition sections; these offer an abundance of fascinating procedures, which reinforces the point that form is indeed important.
However, not all sonatas by the classical "greats" are examples of ground-breaking musical architecture; the first movement of Beethoven's Piano Sonata no. 1 (op. 2, no. 1), for example, is not remarkable or unusual in terms of its form, and yet it is a highly-regarded composition for other reasons (motivic unity ranking high among them). That said, I if op. 2, no. 1 represented the pinnacle of Beethoven's artistic achievement, I doubt he would be considered one of history's greatest composers.
And so, after this long-winded preamble, my answer to the question on the importance of musical form is that form is certainly important, but so are a lot of other aspects of musical composition, some of which are arguably even more important, such as motivic unity and organic growth, the play between expected and unexpected elements, and the music's ability to powerfully move listeners. It may be in this last category that Beethoven distinguished himself the most, and if you compare Sor's op. 22 sonata to, say, the transition from the third movement to the final movement, and the entire final movement itself, of Beethoven's Symphony No. 5, there is no comparison; listening to Sor's music is a pleasant experience, but listening to Beethoven's is mind-blowing, at least some of the time.
Given this, as well as the fact that (a) lesser composers generally used the same forms (e.g., binary, ternary, sonata, rondo) as great composers in a given historical period, and (b) great composers sometimes wrote excellent music whose form was not particularly remarkable, I guess I would have to say that large-scale form gets about a 7 or 8 in terms of compositional importance on my scale of 1-10.  
Ah, but why am I only discussing large-scale form, you may ask? Because to be fair, it is important to note that "form" exists on multiple levels simultaneously in a composition, from the very small scale, such as the intervalic content in a motive, the way in which a theme is constructed, motivic breakdown, the functions of each phrase segment, thematic structure such as period, sentence, phrase group, "auto-generative," fortspinnung, etc., to increasingly larger scales such as the structure of sections, movements, and entire multi-movement works. If the question is, how important is form in every sense of the word, meaning on every level, then my answer is easy: it's a 10.
It is essential to think about form on multiple levels as we compose; if we leave it to an afterthought, our music will likely suffer for it. And by "suffer" I mean that our compositions can sound confused, disorganized, inorganic, etc.
You don't necessarily have to adopt an existing form, or even know what form you are using in the early stages of writing. At many points during the composition process, however, it is good to step back from the the small-scale focus on notes, motives, lines, contour, harmonies, textures, etc., in order to assess what is going on in terms of structure, and work out what the overall form is, or will be. 
I virtually never plan the form of a piece before I start writing; I begin, see where it takes me, add or take away bits, see if I like it, and continue until a section of the music is written. While doing this, my mind is simultaneously trying to make sense of my musical ideas, through analysis, trying to get a sense for how they are structured, and how the structures can make better sense.  When I feel I have a pretty good understanding of the materials with which I am working, I begin working out a tentative overall form for the composition, but this usually changes as I continue the piece.
Many times, when I am not 100% satisfied with a piece I am writing, it is because the form just does not  work for me, and so I play around with the form until the piece makes more sense. Sometimes, in "playing around" with form, I realize that some sections are too long, too short, or even unnecessary, and I wasn't fully aware of this until I did a structural analysis.
On the other hand, some composers, like to begin with an exact, well-planned form, and that obviously can work well too.   
My advice would be to try it both ways (pre-planned form, vs. figuring it out as you go) and see which works best for you. I would also suggest, if you go this route, to try both approaches several times before deciding if one works better. 
Answers to the remaining questions in my previous blog to follow; hopefully they will be shorter!

Friday, July 24, 2009

Fun With Scales and Modes

If you have been following my blog entries on tonality (Why Atonal?, Atonality — Even the Word Sounds Unpleasant!, Atonality = Noise?), you will know that I encourage (i.e., require) student composers to explore harmonic/melodic systems that move beyond conventional tonality, where tonality is defined as " the system of musical organization of the common practice period, and of Western-influenced popular music throughout much of the world today" (from Wikipedia). One way to do this would be to experiment with any of the thousands of scales and modes that either already exist or that you can create yourself, hence the title of today's entry.

→ Here is an "octatonic" scale, also known as a "diminished" scale because a diminished seventh chord is formed from every second note. The intervalic pattern consists of alternating half- and whole-steps (or vice-versa):

Here is a short waltz based on this octatonic scale (click on it to enlarge):


Octatonic Scale Waltz:


→ Here is a Hirajoshi scale:

Here is the first phrase of the waltz, this time based on the Hirajoshi scale:


Hirajoshi Scale Waltz:

→ Here is one form of a blues scale:

… and here is the first phrase of the waltz based on that blues scale:


Blues Scale Waltz:


Discussion:
  • We tend to limit ourselves to the use major and minor scales if composing tonal music, but there are thousands of other scale possibilities that have unique nuances and harmonic implications. If you have fun (i.e., experiment) with even a few of them, you may discover that every different scale gives your compositions a slightly (or even radically) different feel.
  • Of these, there are a number of commonly-used alternatives to major and minor scales, such as anhemitonic (which just means "no semitones") pentatonic scales (5-note scales whose pattern can be found by playing only the black notes on a piano, any of which can be the tonic), the blues scale (there are different permutations, but all are derived from the form of the black-note pentatonic scale beginning on Eb, or La-Do-Re-Me-So-La), the Hirajoshi scale (another pentatonic scale, from Japan, but unlike the previous penatonic scale this one has two semitones (which means it is hemitonic): La-Ti-Do-Mi-Fa-La), or the octatonic scale (used in some Russian folk melodies and by some Russian composers such as Stravinsky and Scriabin, as well as by Bartok, and also used in jazz).
  • You can make up your own scales and modes; Messiaen created scales with repeated patterns that he called "Modes of Limited Transposition," such as:

    Tone-Semitone-Semitone-Tone-Semitone-Semitone-Tone-Semitone-Semitone (which he called his third mode):
    or Semitone-Semitone-Minor Third-Semitone-Semitone-Semitone-Minor Third-Semitone (which he called his fourth mode):
  • Messiaen's Modes of Limited Transposition are all based on repeating patterns within equal subdivisions of the octave, but in making up your own modes or scales, you do not need to be limited in this way. You could, for example, create a scale with a repeating pattern that spans a major sixth. After four such pattern repetitions, you would have spanned three octaves and the overall, three-octave, pattern would then repeat. But the pitch patterns in each of the three octaves would be slightly different. Such as this, for example:
  • The following scale is a mirror around the pitch F#, but you could also create a scale with few or no pattern repetitions in it:
  • Another approach, suggested by my friend and former colleague Dr. Scott Godin, is to construct a few (2-3) atonal chords that you wish to use as the basis for a composition, then construct a scale containing all or most of those notes. You can then use that scale to create additional harmonies if you wish.
  • Once you choose or create some scales with which you want to work (play), you could make charts of the triads and "seventh" chords formed on each scale degree. However, you need not build these chords in the same way as is done with major and minor scales (in thirds); you could form chords based on unusual patterns, such as chord I comprising the 1st, 2nd, 4th, and 5th scale degrees; chord II comprising the 2nd, 3rd, 5th, and 6th scale degrees, etc. Remember that there are no rules here, so you can form chords in whatever way you like.
  • All of these approaches create harmonic and melodic sound worlds that are distinct from major/minor tonality, but which can yield some fresh and attractive results.
  • Consider this: "Tonality" refers to far more than mere scales and the chords formed from those scales; it mostly refers to the relationships between the notes and chords in the scales. When using alternative scales and modes, you may notice some relationships between notes and chords that seem "natural" to you, and you are of course free to use them, but bear in mind that often what seems "natural" in these scales and modes are the aspects that are most closely tied to tonality, such as dominant-tonic relationships or leading tones. It can be fruitful to explore note and chord relationships that are not similar to the more familiar aspects of tonality.
  • Incidentally, the objective, when using something like a blues or Hirajoshi scale, is not necessarily to create blues music or Japanese music (although it obviously can be if you wish); it is to write compositions that may sound to the listener as though they are related the kinds of music from which the scales originated, but with your own unique spin on them. For example, my blues-scale waltz fragment above does not sound particularly bluesy, because the F#-F-F#-G in the 3rd bar is not characteristic of blues music. More bluesy in that bar would have been F-Eb-F-G, or even Gb-F-Eb-G, because the F#/Gb in that scale is usually treated as an inflection of F or G.
  • And finally, don't forget that the concepts of "non-harmonic tones" and "modulation" can be borrowed from tonality and applied to any music you compose using these alternative scales.
  • Have fun!