Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book23/12CountryDances_1796_Cahusac.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9761-12CountryDances_1796_Cahusac.ps) >>/Users/jc/w/tmp/Tune-9761-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book23/12CountryDances_1796_Cahusac.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_97615.log 289009 Log file, useful mostly for debugging
Tune-9761-12CountryDances_1796_Cahusac.abc 167 ABC music file with the extracted tune(s)
Tune-9761-12CountryDances_1796_Cahusac.ps 6 PostScript
Tune-9761-12CountryDances_1796_Cahusac.txt 167 Plain-text file with the extracted tune(s)
Tune-9761-get.log 9441 Log file, useful mostly for debugging
Tune-97613-get.log 4518 Log file, useful mostly for debugging
Tune-97615-get.log 5482 Log file, useful mostly for debugging
Tune-97616-get.log 4009 Log file, useful mostly for debugging
Tune-97617-get.log 4675 Log file, useful mostly for debugging
Tune-97618-get.log 2601 Log file, useful mostly for debugging
Tune-97619-get.log 4436 Log file, useful mostly for debugging
These files should be available for 24 hours.