Hearing in colour – Synesthesia and musical composition

What if we heard music and at the same time could see colours? What if we composed music to create colours? Louisa (Year 12) investigates synesthesia and musical composition.

Synesthesia is the neurological condition where the stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in another. There are many different types, however common examples include grapheme-colour synesthesia where letters and numbers are seen as clearly coloured and chromesthesia where different musical keys, notes and timbres elicit specific colours and textures in one’s minds’ eye. For example, some synesthetes may clearly see the musical note F as blue or Wednesday as dark green or the number 6 as tasting of strawberries.

How some synesthetes may experience letters and numbers

Whilst some synesthetic associations are more common than others, it is possible for them to occur between any number of senses or cognitive pathways.

The definitive cause of synesthesia is not yet known, however most neuroscientists agree it is caused by excess interconnectivity between the visual cortex of the brain and the different sensory regions. It is estimated that around 1 in 2000 people experience true synesthesia and it is more common in women than men, however it may be more common as many who have it may not consider it a condition and leave it unreported.

One area in which there is a large concentration of synesthetes is in the arts; notable synasthetes include composers Olivier Messiaen, Franz Liszt and Jean Sibelius, Russian author Vladimir Nabokov, artists Vincent van Gogh and David Hockney, jazz legend Duke Ellington and actress Marilyn Monroe.

Composers who experienced chromesthesia (the type of synesthesia where musical keys and notes and sometimes intervals are associated with colours) often actively incorporated it into their works and in some cases made it central to their compositions.

How musical keys may be seen by people with chromesthesia

French composer Olivier Messiaen (1908-1992) was quoted as saying “I see colours when I hear sounds but I don’t see colours with my eyes. I see colours intellectually, in my head.” He said that if a particular sound complex was repeated an octave higher, the colour he saw persisted, but grew paler. If the octave was lowered the colour darkened. Only if the sound complex was transposed into a different pitch did the colour inside his head radically change.

For Messiaen, it was vital that performers and listeners of his music understood the colours he was portraying in his compositions and he did this by writing instructions in his scores. For example, pianists in the second movement (Vocalise) of his Quartet for the End of Time, written in a prisoner of war camp in 1940, are told to aim for “blue-orange” chords. Similarly, musicians playing ‘Couleurs de la cité céleste’ are instructed to conjure “yellow topaz” for one chord cluster and “bright green” for the next as well as many more examples.

Another composer who actively made use of his synesthesia is Finnish composer Jean Sibelius (1865-1957). Sibelius wrote that “music is for me like a beautiful mosaic which God has put together”. He said if he heard a violin playing a certain piece of music, he would see a corresponding colour such as colour of the sky at sunset in the summer. The colour would be uniquely specific and would only be triggered by a particular sound. This means many of his compositions have strong links to imagery experienced by Sibelius which may account for the strong emotional pulse that can be heard throughout his compositions.

Similarly, Franz Lizst (1811-1886) was known to use his synesthesia in his orchestral compositions, saying “O please, gentlemen, a little bluer, if you please! This tone type requires it!” or “That is a deep violet, please, depend on it! Not so rose!” Initially the orchestra believed Liszt was just joking before realising Lizst did in fact see colours for each tone and key.

It can be difficult to understand the experiences of true synesthetes when not having the condition oneself, however this can be made easier by looking at the works of synesthetic artist Wassily Kandinsky (1866-1944), the first abstract painter. Instead of using his synesthesia to compose new music, he would create artwork based on the music he heard.

Kandinsky discovered his synesthesia at a performance of Wagner’s opera Lohengrin in Moscow. He said “I saw all my colours in spirit, before my eyes. Wild, almost crazy lines were sketched in front of me.” In 1911, after studying and settling in Germany, he was similarly moved by a Schoenberg concert of 3 Klavierstücke Op. 11 and finished painting Impression III (Konzert) two days later.

Impression III (Konzert) – Kandinsky

When studying the music of known synesthetic composers, it’s important we bear in mind what the composers were experiencing when writing it as it adds another dimension to the music and can change the overall interpretation. It also offers a fascinating link between music and art, adding increased complexity to the process of musical composition.

Twitter: @Music_WHS

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