Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1792/24CountryDances_1811_Goulding_dAlmaine_Potter.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2690-24CountryDances_1811_Goulding_dAlmaine_Potter.ps) >>/Users/jc/w/tmp/Tune-2690-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1792/24CountryDances_1811_Goulding_dAlmaine_Potter.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_26909.log 334697 Log file, useful mostly for debugging
Tune-2690-24CountryDances_1811_Goulding_dAlmaine_Potter.abc 182 ABC music file with the extracted tune(s)
Tune-2690-24CountryDances_1811_Goulding_dAlmaine_Potter.ps 6 PostScript
Tune-2690-24CountryDances_1811_Goulding_dAlmaine_Potter.txt 182 Plain-text file with the extracted tune(s)
Tune-2690-get.log 11531 Log file, useful mostly for debugging
Tune-26903-get.log 9322 Log file, useful mostly for debugging
Tune-26904-get.log 13695 Log file, useful mostly for debugging
Tune-26907-get.log 4408 Log file, useful mostly for debugging
Tune-26908-get.log 4024 Log file, useful mostly for debugging
Tune-26909-get.log 4054 Log file, useful mostly for debugging
These files should be available for 24 hours.