From the L.A. Times:

Convinced that music is a key ingredient for a good bottle of red or white, Markus Bachmann has invented a special speaker that exposes fermenting grape juice to classical, jazz or electronic tunes. The sound waves, he claims, positively influence the maturing process and produce a better tasting wine.

The eyebrow-raising technique is the latest in a slew of weird ways to make wine, some of which also have a melodic touch.

Scientists scoff at such methods, calling them at best harmless, at worst cynical marketing ploys.

Werner Gruber, a University of Vienna physicist and member of a group known as the Science Busters, which aims to debunk false scientific claims, rejected Bachmann's idea as "rubbish."

"Yeast, fungi, don't have opinions," Gruber said. "They really don't care if AC/DC, Madonna or Mozart is played to them."

For more, se: Is that Mozart in my glass? Austrian claims music 'infusions' make wine better