Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great book for someone wanting to build a tracker organ

I purchased and read this book back in the late 1970's while in high school. I have since then anticipated building a pipe organ. This book gives detailed and practical advice on all aspects of building a small tracker action pipe organ. The materials and some of the terms are quite dated. I do not think the section on the building of pipes would be practical to most hobbyists, but the information on the building of the chests, framework, tracker action, and cabinet is fantastic. Another interesting similar book is "Organbuilding for Amateurs" by Mark Wicks in which the author describes a method of making pipes out of paper.