Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1793/24CountryDances_1811_Goulding_dAlmaine_Potter.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4172-24CountryDances_1811_Goulding_dAlmaine_Potter.ps) >>/Users/jc/w/tmp/Tune-4172-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1793/24CountryDances_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
Tune-4172-24CountryDances_1811_Goulding_dAlmaine_Potter.abc 182 ABC music file with the extracted tune(s)
Tune-4172-24CountryDances_1811_Goulding_dAlmaine_Potter.ps 6 PostScript
Tune-4172-24CountryDances_1811_Goulding_dAlmaine_Potter.txt 182 Plain-text file with the extracted tune(s)
Tune-4172-get.log 4799 Log file, useful mostly for debugging
Tune-41720-get.log 9591 Log file, useful mostly for debugging
Tune-41721-get.log 10170 Log file, useful mostly for debugging
Tune-41722-get.log 4356 Log file, useful mostly for debugging
Tune-41725-get.log 13521 Log file, useful mostly for debugging
Tune-41726-get.log 9485 Log file, useful mostly for debugging
Tune-41728-get.log 10358 Log file, useful mostly for debugging
Tune-41729-get.log 3122 Log file, useful mostly for debugging
These files should be available for 24 hours.