Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/FtFIoD/24CountryDances_1781_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1538-24CountryDances_1781_Skillern.ps) >>/Users/jc/w/tmp/Tune-1538-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/FtFIoD/24CountryDances_1781_Skillern.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-1538-24CountryDances_1781_Skillern.abc 168 ABC music file with the extracted tune(s)
Tune-1538-24CountryDances_1781_Skillern.ps 6 PostScript
Tune-1538-24CountryDances_1781_Skillern.txt 168 Plain-text file with the extracted tune(s)
Tune-1538-get.log 4475 Log file, useful mostly for debugging
Tune-15380-get.log 5638 Log file, useful mostly for debugging
Tune-15381-get.log 4553 Log file, useful mostly for debugging
Tune-15385-get.log 3668 Log file, useful mostly for debugging
Tune-15387-get.log 7516 Log file, useful mostly for debugging
Tune-15388-get.log 7268 Log file, useful mostly for debugging
Tune-15389-get.log 8919 Log file, useful mostly for debugging
These files should be available for 24 hours.