for x in 1 2 3 4 ; do for y in a b ; do

wget http://www.bearcave.com/bookrev/neuromancer/Tape$x$y.mp3

done ; done

Nice work, thank you.

Well except for the comment about The Difference Engine. That's a great book! :)

I can't take the credit, I'm merely a finder, not the author :)