Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book08/24CountryDances_1780_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7455-24CountryDances_1780_Skillern.ps) >>/Users/jc/w/tmp/Tune-7455-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book08/24CountryDances_1780_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
Coll_74555.log 159717 Log file, useful mostly for debugging
Tune-7455-24CountryDances_1780_Skillern.abc 168 ABC music file with the extracted tune(s)
Tune-7455-24CountryDances_1780_Skillern.ps 6 PostScript
Tune-7455-24CountryDances_1780_Skillern.txt 168 Plain-text file with the extracted tune(s)
Tune-7455-get.log 12616 Log file, useful mostly for debugging
Tune-74550-get.log 4616 Log file, useful mostly for debugging
Tune-74551-get.log 8533 Log file, useful mostly for debugging
Tune-74552-get.log 4390 Log file, useful mostly for debugging
Tune-74553-get.log 4821 Log file, useful mostly for debugging
Tune-74554-get.log 5423 Log file, useful mostly for debugging
Tune-74555-get.log 12244 Log file, useful mostly for debugging
Tune-74558-get.log 3190 Log file, useful mostly for debugging
These files should be available for 24 hours.