They have released a version that is bilingual.
Which means, everything that you see in Chinese in the 3 books (Grade 1-3, Grade 4-6, Grade 7-8) is translated into English beside / below the Chinese characters.
Perhaps more and more non-Chinese reading people are taking up the Guzheng....
The price tag is different as well. The additional English words will cost you S$4 more!
Have a good day!