Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MM2/Gow-CSR2-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7997-Gow-CSR2-abc2.ps) >>/Users/jc/w/tmp/Tune-7997-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MM2/Gow-CSR2-abc2.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-7997-Gow-CSR2-abc2.abc 149 ABC music file with the extracted tune(s)
Tune-7997-Gow-CSR2-abc2.ps 6 PostScript
Tune-7997-Gow-CSR2-abc2.txt 149 Plain-text file with the extracted tune(s)
Tune-7997-get.log 4125 Log file, useful mostly for debugging
Tune-79972-BB50.abc 141 ABC music file with the extracted tune(s)
Tune-79972-BB50.ps 6 PostScript
Tune-79972-BB50.txt 141 Plain-text file with the extracted tune(s)
Tune-79972-get.log 3867 Log file, useful mostly for debugging
Tune-79975-get.log 4080 Log file, useful mostly for debugging
Tune-79976-GentlemansMagazine.abc 155 ABC music file with the extracted tune(s)
Tune-79976-GentlemansMagazine.pdf 2217 Portable Data Format
Tune-79976-GentlemansMagazine.ps 6 PostScript
Tune-79976-GentlemansMagazine.txt 155 Plain-text file with the extracted tune(s)
Tune-79976-get.log 5118 Log file, useful mostly for debugging
These files should be available for 24 hours.