The triangle is a musical instrument idiophone consisting of a metal bar of circular section bent at two points to form a triangle more or less regular. It is held in one hand by the player who hits top with a rod, also metallic.
His tone and acute crystal allows it to be noticeable even when played in an orchestra, bringing some rhythmic structuring the piece performed.
The size of a triangle determines the height of the sound it makes (directly proportional to the length of the metal rod used). The small triangles are about twenty centimeters square, the largest of up to 30 or 40 centimeters. To reduce the weight of the instrument and the musician's fatigue, the triangle can be made of aluminum rather than steel, but there are also triangles made of a simple concrete iron recovery.
The musician holds the triangle in one hand (his hand called weak or the left-handed and right to left): the weight of the instrument is covered by the index, the rest of the hand used to stifle the resonance of the metal closing in on one of its edges. On the other hand, he knocks in rhythm the bottom bar at the bottom corner farthest from him. The movement of the rod will hit bottom and turn the bar furthest from the bar, when the rod is partially involved in the opening of the triangle.
The musical forms in which the triangle is the most frequently used are:
The rhythm is in music, which determines the duration of notes to each other. The rhythm, melody, tempo and nuance are the four main facts to characterize a given musical phrase.
In western music, the word means a tone scale music belonging to the tonal system.
- Caught in a broad sense, the word "tone" can refer to the tonal system as a whole.
- The word can also take the direction of height, its fundamental to some instruments.
- The word tone can be used as a synonym for tone.
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:
- Ut: Piano, strings, flutes and piccolo, oboe, bassoon, C trumpet, trombone, tuba, bass tuba.
- D flat: the old piccolos.
- Re: Trumpet in D.
- Eb: alto saxophone and baritone, small bugle, horn in E flat, alto (small tuba), clarinet, bass tuba.
- F: Cor.
- Sol: Trumpet in G.
- The: Oboe d'amore, the trumpet.
- Bb: soprano saxophone, tenor tuba (euphonium and baritone), B-flat trumpet, flugelhorn, clarinet, bass tuba (bombardon).