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Sentence to think about :  In the busy world of show business, it is not necessary to be a good musician to be familiar with the music.  Pierre Dac
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Sentence to think about :  That you become a teacher, scholar, or musician, have respect for the "sense", but do not imagine it is taught.  Hermann Hesse
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Sentence to think about :  In the artistic hierarchy, the birds are the greatest musicians that exist on our planet.  Olivier Messiaen
Sentence to think about :  The music is the soul in harmony with all that exists.  Oscar Wilde
Sentence to think about :  The vase gives form to the emptiness, and music to silence.  Georges Braque
Sentence to think about :  What good attendance Plato, when a saxophone can also do us a glimpse of another world ?  Emil Michel Cioran
Sentence to think about :  Without music, life would be a mistake.  Friedrich Nietzsche
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Sentence to think about :  The more one knows about music, the less one is able to say something worthwhile.  Patrick Süskind
Sentence to think about :  The opera is opera, the symphony is the symphony, and I do not think it is nice to dance with the orchestra.  Giuseppe Verdi
Sentence to think about :  Mass of love - it seems that music is that for women.  Edmond et Jules de Goncourt
Sentence to think about :  There is no music more enjoyable than the variations of tunes.  Joseph Joubert
Sentence to think about :  Music is a higher revelation than all wisdom and philosophy.  Ludwig van Beethoven
Sentence to think about :  The real music is silence, and all notes are framed by silence.  Miles Davis
Sentence to think about :  The music, the most beautiful religion in the world where we are not threatened or promised.  Minou Drouet
Sentence to think about :  Jazz is what allows us to escape from everyday life.  Stéphane Grappelli
Sentence to think about :  The music deserves a second language compulsory in all schools in the world.  Paul Carvel
Sentence to think about :  Music gives a soul to our hearts and wings to thought.  Platon
Sentence to think about :  The beauty of music - like light - is that of speed, mobility, elusive.  Jean-Michel Jarre
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Key signature

Key signature

In solfeggio, key signature means a set of changes to the key together, composed either exclusively of sharps or flats exclusively outside the special case of change of key signature.


  • These alterations, known as constitutive alterations, whose number may vary from one to seven, will always follow the same order.
- Order of sharps, ascending by fifths: F, C, G, D, A, E, B.
- Order of flats, by descending fifths: B, E, A, D, G, C, F is the reverse of the previous.
Ordre des altérations constitutives
For example, if there is one sharp to the key, this will be F Sharp If there are five: F Sharp, C Sharp, G Sharp, D Sharp and ASharp; if there are two flats: B flat and E flat, if there are four : B flat, E flat, A flat, and D flat, etc...


While the impact of accidental alteration exerted on any note of the same name and same height in so far as it is placed, the effect of constitutive alteration is permanent : throughout the range, it's exercises over all notes of the same name of different height but of course, if in the meantime came a change of key signature, or simply an accidental alteration modifying the pitch concerned.

  • Eg :
Valeur des altérations constitutives
In the example above, the E flat (flat constitution) affects all the notes, except notes No.4 and No.6 because of accidental naturals. Note No.5, although also a E flat is not affected by the E Natural because it is situated at an octave different.


The constitutive alterations serve to transpose the scale diatonic natural. Thus, regardless of the key signature, you will always find in each octave, "two diatonic semitones isolated framing alternately two and three tones".

"Transpose a melody" means "move this song in height, without altering its constitution". When transposing the names of notes change, but the intervals between notes are unchanged, thereby avoiding distortion of the original melody. If the spouses intervals of the diatonic scale were identical, transposition does not deserve a long explanation. But as we know, these intervals can be either tone or diatonic semitones, it is essential to retain alterations to the exact distance from these intervals is not changed during implementation.
  • Thus each key signature set its own scales and its own tones . For more details on the key signature and their significance in relation to the key of a song.
  • Transpositions of the diatonic scale natural:
Transposition de l'échelle diatonique naturelle

Change key signature

Just as the quantification of the measure, or as the key, the key signature can be changed in the course of a song. This is called : change of key signature. In the case of a change of key signature, all the constitutive alterations may contain naturals. A change of key signature can occur at a modulation .


(Source: - copyright authors - article under GFDL)

Creation date : 14/03/2009 15:14
Last update : 04/04/2009 19:43
Category : Files - Music files-Solfeggio
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