Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/jig/SocialDances2002.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7917-SocialDances2002.ps) >>/Users/jc/w/tmp/Tune-7917-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/jig/SocialDances2002.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-7917-SocialDances2002.abc 152 ABC music file with the extracted tune(s)
Tune-7917-SocialDances2002.ps 6 PostScript
Tune-7917-SocialDances2002.txt 152 Plain-text file with the extracted tune(s)
Tune-7917-get.log 4180 Log file, useful mostly for debugging
Tune-79171-get.log 7088 Log file, useful mostly for debugging
Tune-79172-get.log 4517 Log file, useful mostly for debugging
Tune-79173-get.log 6050 Log file, useful mostly for debugging
Tune-79175-get.log 4490 Log file, useful mostly for debugging
Tune-79176-get.log 9876 Log file, useful mostly for debugging
Tune-79179-get.log 1398 Log file, useful mostly for debugging
These files should be available for 24 hours.