Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book42/12CountryDances_1796_Cahusac.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7775-12CountryDances_1796_Cahusac.ps) >>/Users/jc/w/tmp/Tune-7775-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book42/12CountryDances_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_77753.log 585812 Log file, useful mostly for debugging
Tune-7775-12CountryDances_1796_Cahusac.abc 167 ABC music file with the extracted tune(s)
Tune-7775-12CountryDances_1796_Cahusac.ps 6 PostScript
Tune-7775-12CountryDances_1796_Cahusac.txt 167 Plain-text file with the extracted tune(s)
Tune-7775-get.log 12297 Log file, useful mostly for debugging
Tune-77750-get.log 8902 Log file, useful mostly for debugging
Tune-77751-get.log 4128 Log file, useful mostly for debugging
Tune-77752-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-77752-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-77752-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-77752-get.log 4392 Log file, useful mostly for debugging
Tune-77753-get.log 2865 Log file, useful mostly for debugging
Tune-77758-get.log 9070 Log file, useful mostly for debugging
Tune-77759-get.log 8933 Log file, useful mostly for debugging
These files should be available for 24 hours.