Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/misc/Gow-CSR4-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8013-Gow-CSR4-abc1.ps) >>/Users/jc/w/tmp/Tune-8013-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/misc/Gow-CSR4-abc1.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-8013-Gow-CSR4-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-8013-Gow-CSR4-abc1.ps 6 PostScript
Tune-8013-Gow-CSR4-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-8013-get.log 4127 Log file, useful mostly for debugging
Tune-80130-get.log 4913 Log file, useful mostly for debugging
Tune-80132-24CountryDances_1776_Randall.abc 165 ABC music file with the extracted tune(s)
Tune-80132-24CountryDances_1776_Randall.ps 6 PostScript
Tune-80132-24CountryDances_1776_Randall.txt 165 Plain-text file with the extracted tune(s)
Tune-80132-get.log 6921 Log file, useful mostly for debugging
Tune-80133-10222_Washingtons_March.abc 854 ABC music file with the extracted tune(s)
Tune-80133-10222_Washingtons_March.ps 38037 PostScript
Tune-80133-10222_Washingtons_March.txt 854 Plain-text file with the extracted tune(s)
Tune-80133-get.log 5147 Log file, useful mostly for debugging
Tune-80137-DanielWright_CCCCD.abc 155 ABC music file with the extracted tune(s)
Tune-80137-DanielWright_CCCCD.txt 155 Plain-text file with the extracted tune(s)
Tune-80137-get.log 3328 Log file, useful mostly for debugging
These files should be available for 24 hours.