Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1793/BonAccordCollection.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4381-BonAccordCollection.ps) >>/Users/jc/w/tmp/Tune-4381-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1793/BonAccordCollection.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_4381.log 957 Log file, useful mostly for debugging
Tune-4381-BonAccordCollection.abc 156 ABC music file with the extracted tune(s)
Tune-4381-BonAccordCollection.ps 6 PostScript
Tune-4381-BonAccordCollection.txt 156 Plain-text file with the extracted tune(s)
Tune-4381-get.log 4257 Log file, useful mostly for debugging
Tune-43811-get.log 7262 Log file, useful mostly for debugging
Tune-43812-BB50.abc 154 ABC music file with the extracted tune(s)
Tune-43812-BB50.txt 154 Plain-text file with the extracted tune(s)
Tune-43812-get.log 3156 Log file, useful mostly for debugging
Tune-43817-CharlesZeuner_TremontQuadrilles1.abc 169 ABC music file with the extracted tune(s)
Tune-43817-CharlesZeuner_TremontQuadrilles1.ps 6 PostScript
Tune-43817-CharlesZeuner_TremontQuadrilles1.txt 169 Plain-text file with the extracted tune(s)
Tune-43817-get.log 9551 Log file, useful mostly for debugging
These files should be available for 24 hours.