Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1781/24CountryDances_1766_Johnson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67073-24CountryDances_1766_Johnson.ps) >>/Users/jc/w/tmp/Tune-67073-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1781/24CountryDances_1766_Johnson.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-67073-24CountryDances_1766_Johnson.abc 165 ABC music file with the extracted tune(s)
Tune-67073-24CountryDances_1766_Johnson.ps 6 PostScript
Tune-67073-24CountryDances_1766_Johnson.txt 165 Plain-text file with the extracted tune(s)
Tune-67073-30742_Shantuse.abc 761 ABC music file with the extracted tune(s)
Tune-67073-30742_Shantuse.pdf 13094 Portable Data Format
Tune-67073-30742_Shantuse.ps 35886 PostScript
Tune-67073-30742_Shantuse.txt 761 Plain-text file with the extracted tune(s)
Tune-67073-get.log 10085 Log file, useful mostly for debugging
These files should be available for 24 hours.