If you look closely at the picture, the Erhu bridge is tilted slightly in the anti-clockwise direction.
According to SYR, a 1st grade Erhu performer in China, this actually keeps the strings more in tune. Especially useful when he is doing solo performances.
He also says it must turned in the anti-clockwise direction rather than clockwise direction. Never really asked him why. Perhaps the next time when he comes back to Singapore...
