Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CCCCD2/24CountryDances_1804_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8354-24CountryDances_1804_Thompson.ps) >>/Users/jc/w/tmp/Tune-8354-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CCCCD2/24CountryDances_1804_Thompson.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_83546.log 524212 Log file, useful mostly for debugging
Tune-8354-24CountryDances_1804_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-8354-24CountryDances_1804_Thompson.ps 6 PostScript
Tune-8354-24CountryDances_1804_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-8354-get.log 4479 Log file, useful mostly for debugging
Tune-83540-get.log 20289 Log file, useful mostly for debugging
Tune-83542-24CountryDances_1781_Skillern.abc 168 ABC music file with the extracted tune(s)
Tune-83542-24CountryDances_1781_Skillern.ps 6 PostScript
Tune-83542-24CountryDances_1781_Skillern.txt 168 Plain-text file with the extracted tune(s)
Tune-83542-get.log 4402 Log file, useful mostly for debugging
Tune-83543-get.log 10827 Log file, useful mostly for debugging
Tune-83545-get.log 3576 Log file, useful mostly for debugging
Tune-83546-get.log 9983 Log file, useful mostly for debugging
Tune-83547-get.log 4902 Log file, useful mostly for debugging
Tune-83548-get.log 4526 Log file, useful mostly for debugging
Tune-83549-get.log 3210 Log file, useful mostly for debugging
These files should be available for 24 hours.