Christopher Lavery

There is no information provided about Christopher Lavery in the given documents.

The author's background, qualifications, experience in music or piano instruction, or other relevant details are not mentioned.

Without additional context, it is impossible to provide a summary of the author's life, career, or expertise in the field of piano and keyboard instruction.

The only information available is that Christopher Lavery is the author of the book "Piano & Keyboard Made Easy," but no further details about their background or credentials are provided in the given documents.