Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1781/Kilkenny_Hornpipe.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-44242-Kilkenny_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-44242-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1781/Kilkenny_Hornpipe.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-44242-30293_Hon_Miss_Dillons_Waltz.abc 842 ABC music file with the extracted tune(s)
Tune-44242-30293_Hon_Miss_Dillons_Waltz.pdf 15240 Portable Data Format
Tune-44242-30293_Hon_Miss_Dillons_Waltz.ps 36065 PostScript
Tune-44242-30293_Hon_Miss_Dillons_Waltz.txt 842 Plain-text file with the extracted tune(s)
Tune-44242-Kilkenny_Hornpipe.abc 154 ABC music file with the extracted tune(s)
Tune-44242-Kilkenny_Hornpipe.ps 6 PostScript
Tune-44242-Kilkenny_Hornpipe.txt 154 Plain-text file with the extracted tune(s)
Tune-44242-get.log 10354 Log file, useful mostly for debugging
These files should be available for 24 hours.