Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1782/BotCDaSS.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8366-BotCDaSS.ps) >>/Users/jc/w/tmp/Tune-8366-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1782/BotCDaSS.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-8366-BotCDaSS.abc 145 ABC music file with the extracted tune(s)
Tune-8366-BotCDaSS.ps 6 PostScript
Tune-8366-BotCDaSS.txt 145 Plain-text file with the extracted tune(s)
Tune-8366-get.log 4020 Log file, useful mostly for debugging
Tune-83660-Brewer_NewInstructionsForTheClarinet.abc 173 ABC music file with the extracted tune(s)
Tune-83660-Brewer_NewInstructionsForTheClarinet.pdf 2217 Portable Data Format
Tune-83660-Brewer_NewInstructionsForTheClarinet.ps 6 PostScript
Tune-83660-Brewer_NewInstructionsForTheClarinet.txt 173 Plain-text file with the extracted tune(s)
Tune-83660-get.log 5636 Log file, useful mostly for debugging
Tune-83665-MillTownMaidReel-001.svg 19973 Scalable Vector Graphics format
Tune-83665-MillTownMaidReel.abc 445 ABC music file with the extracted tune(s)
Tune-83665-MillTownMaidReel.txt 445 Plain-text file with the extracted tune(s)
Tune-83665-get.log 4370 Log file, useful mostly for debugging
These files should be available for 24 hours.