Best products from r/musicdiy
We found 2 comment on r/musicdiy discussing the most recommended products. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 2 products and ranked them based on the amount of positive reactions they received. Here are the top 20.
It seems like you want an intro that is intermediate in level rather than for absolute beginners, one that focuses on audio rather than general theory, and one that isn't primarily focused on projects.
I don't happen to know of a book that is an exact fit, but you might be interested in "The Audiophile's Project Sourcebook: 80 High-Performance Audio Electronics Projects"
http://www.amazon.com/Audiophiles-Project-Sourcebook-High-Performance-Electronics/dp/0071379290
But usually in order to really understand electronics, you have to deviate from your immediate goal, so a general electronics text might turn out to be the best of what's available out there.
One truly classic famous book is The Computer Music Tutorial by Curtis Roads: http://www.amazon.com/Computer-Music-Tutorial-Curtis-Roads/dp/0262680823
I consider this a must-read despite the fact that it is aging, and regardless of the fact that it is not purely schematic diagrams. The conceptual understanding of the general topic is more important than the medium that implements something.