Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CCCCD2/24CountryDances_1767_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8521-24CountryDances_1767_Thompson.ps) >>/Users/jc/w/tmp/Tune-8521-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CCCCD2/24CountryDances_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-8521-24CountryDances_1767_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-8521-24CountryDances_1767_Thompson.ps 6 PostScript
Tune-8521-24CountryDances_1767_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-8521-get.log 9333 Log file, useful mostly for debugging
Tune-85212-get.log 8236 Log file, useful mostly for debugging
Tune-85213-get.log 4414 Log file, useful mostly for debugging
Tune-85214-get.log 14082 Log file, useful mostly for debugging
Tune-85215-24CountryDances_1808_Goulding.abc 168 ABC music file with the extracted tune(s)
Tune-85215-24CountryDances_1808_Goulding.pdf 2217 Portable Data Format
Tune-85215-24CountryDances_1808_Goulding.ps 6 PostScript
Tune-85215-24CountryDances_1808_Goulding.txt 168 Plain-text file with the extracted tune(s)
Tune-85215-get.log 5447 Log file, useful mostly for debugging
Tune-85216-get.log 4486 Log file, useful mostly for debugging
Tune-85218-get.log 13766 Log file, useful mostly for debugging
Tune-85219-get.log 4579 Log file, useful mostly for debugging
These files should be available for 24 hours.