This is the most comprehensive book I've read on music history and musicology written for a popular audience. The only reason I gave 4 stars is because of some noticeable omissions - I'd have given an additional half-star if possible. Readers will probably notice the missing parts based on what they track, and I'm no exception, so it's somewhat subjective. Still, Linda Ronstadt is pretty hard to miss. Another gap is the early music revival of the late 1960's - 70's, spearheaded by musicians such as David Munrow and John Renbourne, and made popular by Fairport Convention, Pentangle, Steeleye Span and others. Then again, maybe you'd have to be a follower of early music and folk revivals to notice this. And if the book had included absolutely everything, it would probably weigh 50 lbs. So, for a good basic background on music throughout history and around the world, plus a lowdown on its various instruments, I'd recommend starting here, knowing that filling in the gaps would require other sources.