Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-1488-10410_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9893-Tune-1488-10410_.ps) >>/Users/jc/w/tmp/Tune-9893-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-1488-10410_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Form_98936.log 830 Log file, useful mostly for debugging
Tune-9893-Tune-1488-10410_.abc 168 ABC music file with the extracted tune(s)
Tune-9893-Tune-1488-10410_.ps 6 PostScript
Tune-9893-Tune-1488-10410_.txt 168 Plain-text file with the extracted tune(s)
Tune-9893-get.log 4278 Log file, useful mostly for debugging
Tune-98934-24CountryDances_1778_Thompson.abc 177 ABC music file with the extracted tune(s)
Tune-98934-24CountryDances_1778_Thompson.txt 177 Plain-text file with the extracted tune(s)
Tune-98934-get.log 3592 Log file, useful mostly for debugging
Tune-98939-24CountryDances_1792_Thompson.abc 177 ABC music file with the extracted tune(s)
Tune-98939-24CountryDances_1792_Thompson.txt 177 Plain-text file with the extracted tune(s)
Tune-98939-get.log 3592 Log file, useful mostly for debugging
These files should be available for 24 hours.