The number of bizarre uses for Mozart's music appears to be on the increase. Previous claims for its powers have included accelerating sewage digestion in Austria and increasing milk production from cows in Spain.
Now Japan is in on the act, with bananas and tomatoes ripened to Mozart and sake fermented to his soothing strains.
At the Ohara Shuzo, a sake brewery in Fukushima Prefecture, the fermenting vats are played one hour of Mozart every morning and every evening for 24 to 30 days. The brewers originally experimented with a range of music including jazz, Mozart, Bach, and Beethoven. They eventually narrowed down the repertoire to Mozart's Symphony No.41 and his 20th Piano Concerto. According to a spokesperson for the brewery "It makes the sake have a richer fragrance and a milder taste."
Bananas prefer the 17th String Quartet and the 15th Piano Concerto, which apparently improve the sweetness of the fruit. Other products to be produced with the aid of Mozart in Japan include soy sauce, udon noodles and maitake mushrooms.
There may not be any scientific basis for these claims, but that hasn't stopped the food companies from charging a premium for their Mozart products. Mozart's face appears on the bottle of the sake his music has aided, while Mozart bananas are labelled with a graphic that includes a conducting stork and musical notation in which the note heads are replaced by bananas.
So far, most of the Mozart products are only sold locally in individual prefectures, but sales are healthy and a number of companies are now considering wider national distribution.