Reddit reviews Analysis, Synthesis, and Perception of Musical Sounds: The Sound of Music (Modern Acoustics and Signal Processing)

Yes, this is a sort of "internet" classic. It's been available for several years now and is quite a good read. That one might be the draft, but it doesn't matter too much — he mostly got it right the first time. It's a great book. Still, the published version from 2007 is a little better organized and has fewer errors. You should probably get it if possible.

I also quite like Analysis, Synthesis, and Perception of Musical Sounds by James Beauchamp (even more expensive than Puckette's book!), and if you want to get, like, super nerdy about synthesis, there's always Bibao's Numerical Sound Synthesis (more expensive yet!!).