Do you think it is worth upgrading from the first edition? Does it update much of the old information? The new chapters alone are not really enough to sell me on buying, at least not until my first edition falls apart.
There is lots of information and even whole chapters that couldn't have been possibly written in 1996, but I haven't read the first edition so I can't really compare in detail.
It's worth noting that the second edition has been just released last year - 27 years after the first edition! It's a massive book: https://mitpress.mit.edu/9780262044912/the-computer-music-tu...