Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1766/24CountryDances_1772_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8340-24CountryDances_1772_Thompson.ps) >>/Users/jc/w/tmp/Tune-8340-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1766/24CountryDances_1772_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_83408.log 349932 Log file, useful mostly for debugging
Tune-8340-24CountryDances_1772_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-8340-24CountryDances_1772_Thompson.ps 6 PostScript
Tune-8340-24CountryDances_1772_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-8340-get.log 4463 Log file, useful mostly for debugging
Tune-83402-get.log 3911 Log file, useful mostly for debugging
Tune-83402-v3tune.abc 143 ABC music file with the extracted tune(s)
Tune-83402-v3tune.ps 6 PostScript
Tune-83402-v3tune.txt 143 Plain-text file with the extracted tune(s)
Tune-83404-get.log 4390 Log file, useful mostly for debugging
Tune-83407-KittyBridges_1745_NO.abc 163 ABC music file with the extracted tune(s)
Tune-83407-KittyBridges_1745_NO.ps 6 PostScript
Tune-83407-KittyBridges_1745_NO.txt 163 Plain-text file with the extracted tune(s)
Tune-83407-get.log 4237 Log file, useful mostly for debugging
Tune-83408-Playford_COST.abc 150 ABC music file with the extracted tune(s)
Tune-83408-Playford_COST.txt 150 Plain-text file with the extracted tune(s)
Tune-83408-get.log 3242 Log file, useful mostly for debugging
These files should be available for 24 hours.