Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1777/SCD_RoyGoldring_15SocialDances.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7074-SCD_RoyGoldring_15SocialDances.ps) >>/Users/jc/w/tmp/Tune-7074-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1777/SCD_RoyGoldring_15SocialDances.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-7074-SCD_RoyGoldring_15SocialDances.abc 167 ABC music file with the extracted tune(s)
Tune-7074-SCD_RoyGoldring_15SocialDances.ps 6 PostScript
Tune-7074-SCD_RoyGoldring_15SocialDances.txt 167 Plain-text file with the extracted tune(s)
Tune-7074-get.log 118140 Log file, useful mostly for debugging
Tune-70740-24CountryDances_1799_Skillern.abc 166 ABC music file with the extracted tune(s)
Tune-70740-24CountryDances_1799_Skillern.ps 6 PostScript
Tune-70740-24CountryDances_1799_Skillern.txt 166 Plain-text file with the extracted tune(s)
Tune-70740-get.log 4515 Log file, useful mostly for debugging
Tune-70741-get.log 4247 Log file, useful mostly for debugging
Tune-70747-24CountryDances_1762_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-70747-24CountryDances_1762_Thompson.pdf 2217 Portable Data Format
Tune-70747-24CountryDances_1762_Thompson.ps 6 PostScript
Tune-70747-24CountryDances_1762_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-70747-get.log 5437 Log file, useful mostly for debugging
These files should be available for 24 hours.