Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Compleat_Tutor/BostonCollection.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4358-BostonCollection.ps) >>/Users/jc/w/tmp/Tune-4358-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Compleat_Tutor/BostonCollection.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_4358.log 266066 Log file, useful mostly for debugging
Coll_43580.log 971013 Log file, useful mostly for debugging
Coll_43583.log 268876 Log file, useful mostly for debugging
Coll_43588.log 495083 Log file, useful mostly for debugging
Coll_43589.log 515272 Log file, useful mostly for debugging
Form_43580.log 2667 Log file, useful mostly for debugging
Tune-4358-BostonCollection.abc 163 ABC music file with the extracted tune(s)
Tune-4358-BostonCollection.ps 6 PostScript
Tune-4358-BostonCollection.txt 163 Plain-text file with the extracted tune(s)
Tune-4358-get.log 4250 Log file, useful mostly for debugging
Tune-43581-get.log 4788 Log file, useful mostly for debugging
Tune-43582-get.log 5823 Log file, useful mostly for debugging
Tune-43584-get.log 5647 Log file, useful mostly for debugging
Tune-43589-get.log 19472 Log file, useful mostly for debugging
These files should be available for 24 hours.