1st Edition! The Harmonium Handbook provides detailed instruction in how to play, maintain, and repair this popular devotional instrument. It also reveals the colorful history of free-reed instruments such as the harmonium, which dates back to the time of Marco Polo. The story behind the modern version of the harmonium is a fascinating testimony to the love, skill, innovation, and intermingling of many of the world's great cultures. BEST SELLER! an essential tool for all harmonium owners.