Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Graded1/SkillernChalloner_PCD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6684-SkillernChalloner_PCD1.ps) >>/Users/jc/w/tmp/Tune-6684-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Graded1/SkillernChalloner_PCD1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_66840.log 858 Log file, useful mostly for debugging
Tune-6684-SkillernChalloner_PCD1.abc 162 ABC music file with the extracted tune(s)
Tune-6684-SkillernChalloner_PCD1.ps 6 PostScript
Tune-6684-SkillernChalloner_PCD1.txt 162 Plain-text file with the extracted tune(s)
Tune-6684-get.log 4336 Log file, useful mostly for debugging
Tune-66845-get.log 4400 Log file, useful mostly for debugging
Tune-66846-get.log 1383 Log file, useful mostly for debugging
Tune-66847-get.log 4827 Log file, useful mostly for debugging
Tune-66848-BellsOfNorwich.abc 491 ABC music file with the extracted tune(s)
Tune-66848-BellsOfNorwich.txt 491 Plain-text file with the extracted tune(s)
Tune-66848-get.log 3956 Log file, useful mostly for debugging
Tune-66849-get.log 4424 Log file, useful mostly for debugging
These files should be available for 24 hours.