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sábado, 28 de septiembre de 2013
Bach y las matemáticas. – Accident – Hosting – Registros – School – Record
El título de esta entrada lo he tomado prestado de una estupenda cuenta de Twitter, @PatenteCorsario
Todos sabemos que un canon es una pieza musical que tiene la peculiaridad de que es capaz de que es capaz de "acompañarse" a sí misma.
Una de las obras de Bach, la "Ofrenda Musical" dedicada al rey Federico II de Prusia (Federico el Grande, que era también flautista y amante de la música y las Bellas Artes), está llena de cánones a partir de un tema que el propio Federico anotó personalmente para Bach.
Si nos fijamos en el vídeo del Canon Cangrejo de Johann Sebastian Bach, podemos observar, gracias a una estupenda animación realizada por Jos Leys y Xantox, cómo en este caso música, matemáticas y geometrías van íntimamente unidas.
Si se toca la música desde atrás hacia adelante, lo que se conoce en música como retrogradación, esa misma música tocada al revés acompaña al fragmento original.
Un poco difícil de entender, pero muy fácil si recurrimos a la música y al mencionado vídeo:
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