Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/jig/ViolaRuth_AdvancedSD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7117-ViolaRuth_AdvancedSD.ps) >>/Users/jc/w/tmp/Tune-7117-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/jig/ViolaRuth_AdvancedSD.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_71175.log 461208 Log file, useful mostly for debugging
Coll_71177.log 263810 Log file, useful mostly for debugging
Form_71172.log 787 Log file, useful mostly for debugging
Sess-71173.log 121586 Log file, useful mostly for debugging
Tune-7117-ViolaRuth_AdvancedSD.abc 156 ABC music file with the extracted tune(s)
Tune-7117-ViolaRuth_AdvancedSD.ps 6 PostScript
Tune-7117-ViolaRuth_AdvancedSD.txt 156 Plain-text file with the extracted tune(s)
Tune-7117-get.log 4272 Log file, useful mostly for debugging
Tune-71172-get.log 4931 Log file, useful mostly for debugging
Tune-71174-get.log 8280 Log file, useful mostly for debugging
Tune-71177-get.log 4809 Log file, useful mostly for debugging
These files should be available for 24 hours.