Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1767/24CountryDances_1803_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6927-24CountryDances_1803_Preston.ps) >>/Users/jc/w/tmp/Tune-6927-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1767/24CountryDances_1803_Preston.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-6927-24CountryDances_1803_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-6927-24CountryDances_1803_Preston.ps 6 PostScript
Tune-6927-24CountryDances_1803_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-6927-get.log 4444 Log file, useful mostly for debugging
Tune-69270-get.log 4180 Log file, useful mostly for debugging
Tune-69275-Goulding_SSEIFA_v1.abc 155 ABC music file with the extracted tune(s)
Tune-69275-Goulding_SSEIFA_v1.txt 155 Plain-text file with the extracted tune(s)
Tune-69275-get.log 3330 Log file, useful mostly for debugging
Tune-69276-get.log 4513 Log file, useful mostly for debugging
Tune-69279-Gallini_NewColl44Cot2.abc 157 ABC music file with the extracted tune(s)
Tune-69279-Gallini_NewColl44Cot2.pdf 2217 Portable Data Format
Tune-69279-Gallini_NewColl44Cot2.ps 6 PostScript
Tune-69279-Gallini_NewColl44Cot2.txt 157 Plain-text file with the extracted tune(s)
Tune-69279-get.log 5197 Log file, useful mostly for debugging
These files should be available for 24 hours.