Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book40/SkillernChalloner_PCD2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9427-SkillernChalloner_PCD2.ps) >>/Users/jc/w/tmp/Tune-9427-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book40/SkillernChalloner_PCD2.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_94274.log 378469 Log file, useful mostly for debugging
Find_94277.log 1455 Log file, useful mostly for debugging
Form_94270.log 1012 Log file, useful mostly for debugging
Tune-9427-SkillernChalloner_PCD2.abc 161 ABC music file with the extracted tune(s)
Tune-9427-SkillernChalloner_PCD2.ps 6 PostScript
Tune-9427-SkillernChalloner_PCD2.txt 161 Plain-text file with the extracted tune(s)
Tune-9427-get.log 4328 Log file, useful mostly for debugging
Tune-94274-3397_John_Grumlie-001.svg 13907 Scalable Vector Graphics format
Tune-94274-3397_John_Grumlie.abc 411 ABC music file with the extracted tune(s)
Tune-94274-3397_John_Grumlie.txt 411 Plain-text file with the extracted tune(s)
Tune-94274-get.log 13791 Log file, useful mostly for debugging
Tune-94275-get.log 1558 Log file, useful mostly for debugging
Tune-94276-BostonCollection.abc 155 ABC music file with the extracted tune(s)
Tune-94276-BostonCollection.pdf 2217 Portable Data Format
Tune-94276-BostonCollection.ps 6 PostScript
Tune-94276-BostonCollection.txt 155 Plain-text file with the extracted tune(s)
Tune-94276-get.log 5070 Log file, useful mostly for debugging
Tune-94279-get.log 4751 Log file, useful mostly for debugging
These files should be available for 24 hours.