Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Tunes/24CountryDances_1767_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8039-24CountryDances_1767_Thompson.ps) >>/Users/jc/w/tmp/Tune-8039-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Tunes/24CountryDances_1767_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
Tune-8039-24CountryDances_1767_Thompson.abc 167 ABC music file with the extracted tune(s)
Tune-8039-24CountryDances_1767_Thompson.ps 6 PostScript
Tune-8039-24CountryDances_1767_Thompson.txt 167 Plain-text file with the extracted tune(s)
Tune-8039-get.log 7867 Log file, useful mostly for debugging
Tune-80390-get.log 4219 Log file, useful mostly for debugging
Tune-80391-Jean_Henry_dAnglebert_PdC1.abc 166 ABC music file with the extracted tune(s)
Tune-80391-Jean_Henry_dAnglebert_PdC1.txt 166 Plain-text file with the extracted tune(s)
Tune-80391-get.log 7880 Log file, useful mostly for debugging
Tune-80393-get.log 8878 Log file, useful mostly for debugging
Tune-80395-get.log 3690 Log file, useful mostly for debugging
Tune-80397-get.log 7930 Log file, useful mostly for debugging
Tune-80398-get.log 4507 Log file, useful mostly for debugging
Tune-80399-get.log 4673 Log file, useful mostly for debugging
These files should be available for 24 hours.