Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1782/newpage.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4972-newpage.ps) >>/Users/jc/w/tmp/Tune-4972-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1782/newpage.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-4972-get.log 4005 Log file, useful mostly for debugging
Tune-4972-newpage.abc 144 ABC music file with the extracted tune(s)
Tune-4972-newpage.ps 6 PostScript
Tune-4972-newpage.txt 144 Plain-text file with the extracted tune(s)
Tune-49723-get.log 5356 Log file, useful mostly for debugging
Tune-49726-AMHSI_abc2.abc 147 ABC music file with the extracted tune(s)
Tune-49726-AMHSI_abc2.pdf 2217 Portable Data Format
Tune-49726-AMHSI_abc2.ps 6 PostScript
Tune-49726-AMHSI_abc2.txt 147 Plain-text file with the extracted tune(s)
Tune-49726-get.log 4884 Log file, useful mostly for debugging
Tune-49727-Brewer_NewInstructionsForTheClarinet.abc 173 ABC music file with the extracted tune(s)
Tune-49727-Brewer_NewInstructionsForTheClarinet.pdf 2217 Portable Data Format
Tune-49727-Brewer_NewInstructionsForTheClarinet.ps 6 PostScript
Tune-49727-Brewer_NewInstructionsForTheClarinet.txt 173 Plain-text file with the extracted tune(s)
Tune-49727-get.log 5636 Log file, useful mostly for debugging
These files should be available for 24 hours.