ABSTRACT
One of the most treacherous pitfalls, which, unsought for, lie in wait in descriptions of exercises and advice for performers, derives from the fact that it is a book, things must be placed one after another. They cannot be interwoven.
One of the most treacherous pitfalls, which, unsought for, lie in wait in descriptions of exercises and advice for performers, derives from the fact that it is a book, things must be placed one after another. They cannot be interwoven.