Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/D82/WilliamCampbell_10thBook_1798-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6640-WilliamCampbell_10thBook_1798-V1.ps) >>/Users/jc/w/tmp/Tune-6640-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/D82/WilliamCampbell_10thBook_1798-V1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-6640-WilliamCampbell_10thBook_1798-V1.abc 168 ABC music file with the extracted tune(s)
Tune-6640-WilliamCampbell_10thBook_1798-V1.ps 6 PostScript
Tune-6640-WilliamCampbell_10thBook_1798-V1.txt 168 Plain-text file with the extracted tune(s)
Tune-6640-get.log 4524 Log file, useful mostly for debugging
Tune-66400-get.log 4491 Log file, useful mostly for debugging
Tune-66401-get.log 15060 Log file, useful mostly for debugging
Tune-66403-get.log 5109 Log file, useful mostly for debugging
Tune-66404-get.log 4712 Log file, useful mostly for debugging
Tune-66407-get.log 16230 Log file, useful mostly for debugging
Tune-66408-get.log 3528 Log file, useful mostly for debugging
These files should be available for 24 hours.