Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book17/24CountryDances_1809_Cahusac.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3004-24CountryDances_1809_Cahusac.ps) >>/Users/jc/w/tmp/Tune-3004-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book17/24CountryDances_1809_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_30041.log 153866 Log file, useful mostly for debugging
Coll_30044.log 161016 Log file, useful mostly for debugging
Tune-3004-24CountryDances_1809_Cahusac.abc 167 ABC music file with the extracted tune(s)
Tune-3004-24CountryDances_1809_Cahusac.ps 6 PostScript
Tune-3004-24CountryDances_1809_Cahusac.txt 167 Plain-text file with the extracted tune(s)
Tune-3004-get.log 18247 Log file, useful mostly for debugging
Tune-30040-get.log 6558 Log file, useful mostly for debugging
Tune-30041-get.log 4236 Log file, useful mostly for debugging
Tune-30042-get.log 4950 Log file, useful mostly for debugging
Tune-30043-05_TheSpring.abc 1945 ABC music file with the extracted tune(s)
Tune-30043-05_TheSpring.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-30043-05_TheSpring.ps 38211 PostScript
Tune-30043-05_TheSpring.txt 1945 Plain-text file with the extracted tune(s)
Tune-30043-get.log 5447 Log file, useful mostly for debugging
Tune-30044-get.log 5442 Log file, useful mostly for debugging
Tune-30045-get.log 4349 Log file, useful mostly for debugging
These files should be available for 24 hours.