Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1805/Gow-CSR2-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6377-Gow-CSR2-abc2.ps) >>/Users/jc/w/tmp/Tune-6377-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1805/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-6377-Gow-CSR2-abc2.abc 150 ABC music file with the extracted tune(s)
Tune-6377-Gow-CSR2-abc2.ps 6 PostScript
Tune-6377-Gow-CSR2-abc2.txt 150 Plain-text file with the extracted tune(s)
Tune-6377-get.log 4125 Log file, useful mostly for debugging
Tune-63771-get.log 5593 Log file, useful mostly for debugging
Tune-63772-get.log 4206 Log file, useful mostly for debugging
Tune-63773-Carolines_Polka.abc 1370 ABC music file with the extracted tune(s)
Tune-63773-Carolines_Polka.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-63773-Carolines_Polka.ps 42877 PostScript
Tune-63773-Carolines_Polka.txt 1370 Plain-text file with the extracted tune(s)
Tune-63773-get.log 5362 Log file, useful mostly for debugging
Tune-63778-EverydaySongBook2.abc 160 ABC music file with the extracted tune(s)
Tune-63778-EverydaySongBook2.txt 160 Plain-text file with the extracted tune(s)
Tune-63778-get.log 3348 Log file, useful mostly for debugging
These files should be available for 24 hours.