Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1818/SkillernChalloner_PCD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1467-SkillernChalloner_PCD1.ps) >>/Users/jc/w/tmp/Tune-1467-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1818/SkillernChalloner_PCD1.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-1467-SkillernChalloner_PCD1.abc 159 ABC music file with the extracted tune(s)
Tune-1467-SkillernChalloner_PCD1.ps 6 PostScript
Tune-1467-SkillernChalloner_PCD1.txt 159 Plain-text file with the extracted tune(s)
Tune-1467-get.log 9057 Log file, useful mostly for debugging
Tune-14671-get.log 3650 Log file, useful mostly for debugging
Tune-14672-24CountryDances_1803_Gray_Thompson.abc 171 ABC music file with the extracted tune(s)
Tune-14672-24CountryDances_1803_Gray_Thompson.ps 6 PostScript
Tune-14672-24CountryDances_1803_Gray_Thompson.txt 171 Plain-text file with the extracted tune(s)
Tune-14672-get.log 4614 Log file, useful mostly for debugging
Tune-14673-get.log 3599 Log file, useful mostly for debugging
Tune-14677-get.log 1479 Log file, useful mostly for debugging
Tune-14679-get.log 4236 Log file, useful mostly for debugging
These files should be available for 24 hours.