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.
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.
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".
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 .
A diatonic scale is a musical scale called heptatonic, with 7 degrees with 5 tones and 2 half-tones.
This type of scale is the foundation of western music. It is possible, through alterations of the diatonic scale to add a number of intermediate ones, placed near the middle of each tone diatonic. In this case, the scale and amplified, is called chromatic scale. The exact frequency of these intermediate scores can be problematic in agreement: the so-called "equal temperament" simplifies the chromatic scale of reference.
In tonal harmony, modulation refers to a mode change, without interrupting the musical discourse. By extension, it also means:
It is a characteristic of tonal music that can cross different tones successively in the same piece.
To be credible modulation, there must be at least two chords belonging to the new tone: a dominant chord followed by a tonic chord, ie a perfect cadence in the new key. If there is an agreement outside the original tone, there is no modulation, but a simple loan.
The problems posed by the modulation are somewhat similar to those posed by the transposition and are strongly affected by the type of scale used.
In western music, solfeggio (or music theory) is the study of elements to read, write, play or sing a score. The ultimate goal of reading music is to hear a musical work, its orchestration and its interpretation, no other medium that its interior hearing.
In western music, the word means a tone scale music belonging to the tonal system.
A tone is defined as the set of intervals, melodic and harmonic as well, between hierarchical levels of a given scale compared to its fundamental level, called tonic. A tone is characterized by both the tonic and its mode.
Each key is constructed from the diatonic scale.
The tone is also a means to locate a musical instrument in relation to C reference.
The flute, violin or piano are in C, that is to say that when the C is played, it really means to do. The B-flat trumpet sounded really flat so when playing a do. The horn (in F) is heard when playing an F do.
The tone is very important because it will allow transposition and transcription of partitions in C in tones of instruments with different pitches.
Some instruments and their tone:
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