Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1811/24CountryDances_1811_Goulding_dAlmaine_Potter.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4030-24CountryDances_1811_Goulding_dAlmaine_Potter.ps) >>/Users/jc/w/tmp/Tune-4030-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1811/24CountryDances_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-4030-24CountryDances_1811_Goulding_dAlmaine_Potter.abc 182 ABC music file with the extracted tune(s)
Tune-4030-24CountryDances_1811_Goulding_dAlmaine_Potter.ps 6 PostScript
Tune-4030-24CountryDances_1811_Goulding_dAlmaine_Potter.txt 182 Plain-text file with the extracted tune(s)
Tune-4030-get.log 17939 Log file, useful mostly for debugging
Tune-40300-get.log 84107 Log file, useful mostly for debugging
Tune-40302-get.log 10031 Log file, useful mostly for debugging
Tune-40303-get.log 9875 Log file, useful mostly for debugging
Tune-40306-get.log 7560 Log file, useful mostly for debugging
Tune-40307-get.log 10500 Log file, useful mostly for debugging
These files should be available for 24 hours.