Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/100_Popular_HRJCD/Gow-CSR2-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2836-Gow-CSR2-abc1.ps) >>/Users/jc/w/tmp/Tune-2836-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/100_Popular_HRJCD/Gow-CSR2-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
Form_28365.log 884 Log file, useful mostly for debugging
Tune-2836-Gow-CSR2-abc1.abc 163 ABC music file with the extracted tune(s)
Tune-2836-Gow-CSR2-abc1.ps 6 PostScript
Tune-2836-Gow-CSR2-abc1.txt 163 Plain-text file with the extracted tune(s)
Tune-2836-get.log 4203 Log file, useful mostly for debugging
Tune-28363-24CountryDances_1808_Goulding.abc 166 ABC music file with the extracted tune(s)
Tune-28363-24CountryDances_1808_Goulding.pdf 2217 Portable Data Format
Tune-28363-24CountryDances_1808_Goulding.ps 6 PostScript
Tune-28363-24CountryDances_1808_Goulding.txt 166 Plain-text file with the extracted tune(s)
Tune-28363-get.log 5433 Log file, useful mostly for debugging
Tune-28366-get.log 99190 Log file, useful mostly for debugging
Tune-28368-get.log 4637 Log file, useful mostly for debugging
These files should be available for 24 hours.