Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1806/SkillernChalloner_PCD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1526-SkillernChalloner_PCD1.ps) >>/Users/jc/w/tmp/Tune-1526-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1806/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_15260.log 978 Log file, useful mostly for debugging
Tune-1526-SkillernChalloner_PCD1.abc 159 ABC music file with the extracted tune(s)
Tune-1526-SkillernChalloner_PCD1.ps 6 PostScript
Tune-1526-SkillernChalloner_PCD1.txt 159 Plain-text file with the extracted tune(s)
Tune-1526-get.log 4320 Log file, useful mostly for debugging
Tune-15260-get.log 4474 Log file, useful mostly for debugging
Tune-15261-get.log 3094 Log file, useful mostly for debugging
Tune-15263-get.log 1489 Log file, useful mostly for debugging
Tune-15265-get.log 5257 Log file, useful mostly for debugging
Tune-15267-get.log 4229 Log file, useful mostly for debugging
Tune-15269-get.log 2906 Log file, useful mostly for debugging
These files should be available for 24 hours.