A great reference! I'm not a trained musician, but I like experimenting with music using my computer, a music keyboard, and sequencer software; this book does a beautiful job of explaining concepts and aspects of music I'd heard all my life but not been able to name. This will make tinkering with music on the PC a richer and more rewarding pastime.
Very good book on harmony. I found out a lot of interesting things about why some things are named in a specific way and various relationships between different chord progressions, chord substitutions, etc.
Gave it only 4 stars because it was hard to read on my Kindle and the arrangement of images wasn't the best one so it was hard to follow. I think I'll come back again to this book cause it had too much information for this book's size and I'm not sure I can integrate everything at the first reading.