Post by Dave C.I am wrestling with the question as to why a song in a flat key (Body
and Soul in Db) sounds smooth and relaxing compared with playing it in
a sharp key, for example in the key or E which sounds much less
smooth.
And also along with this, why something played in the key of C sounds
so plain.
To help understanding this, I have been reading up on the theory
(Google searches) behind equal temperament tuning (vs. just tuning,
etc) hoping to help me to figure it out.
I have not yet found why the sense of flat keys are different than the
sharp keys.
Hope some one can have some thoughts on this.
In Western full-tempered music there are no harmonic differences between
scales, but there are between modes. So for any given scale (say C for
example) you have a palette of modes from the seven diatonic modes to
more elaborate ones, called altered modes, like harmonic and melodic
minor for example. It is the mode that provides the mood of a given tune.
For example the mode of the 2nd degree, based on D but using the notes
of C major, is very introverted because it contains the notes of the D
minor chord and starts with a half-one (also called diminished second or
minor second). It's a mode that is extensively used in Celtic folk
music, especially in Ireland and Brittany. It's called the Doric mode.
Now there's the mode of the 4th degree, based on F and using the notes
of C major. It's called Lydian and is very open, extraverted and
triumphant. It's because it contains the notes of the F Major chord and
starts with three full tones (F G and A), making it sound "more major
than major". It's used a lot in Russian church, military and folk music.
By using various modes in a complex composition, the composer creates a
wave or pattern of moods and expressions.
Now about the tonalities themselves, what difference are there between
them ? Well, one: height. :-)
The tonal or fundamental of each scale is either higher or lower than C,
and you then write your melody/dies depending on the *voice* you
attribute it to. Basically you can't use the same range of notes for an
alto and a barytone. If you do, you'll have to transpose to another
scale, but that won't change the notes of your song nor the mood(s) of
your entire composition, melody and harmony.
In a piano composition where this range notion seems irrelevant, it's
still important to separate the various voices of a composition and make
sure it's playable with two hands and ten fingers. Other than that any
scale goes.
I hope I've been helpful. Just check Google for words you may not be
familar with, and don't be shy to ask further questions.
--
The imagination is not a State: it is the Human existence itself."
William Blake
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