pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-44965-Hulls_4th_Dragoon_March_not_available_here.ps) >>/Users/jc/w/tmp/Tune-44965-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/gradcenter.marlboro.edu/abc/Helperby/Hulls_4th_Dragoon_March_not_available_here.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-44965-Hulls_4th_Dragoon_March_not_available_here.abc 194 ABC music file with the extracted tune(s)
Tune-44965-Hulls_4th_Dragoon_March_not_available_here.ps 31045 PostScript
Tune-44965-Hulls_4th_Dragoon_March_not_available_here.txt 194 Plain-text file with the extracted tune(s)
Tune-44965-get.log 5499 Log file, useful mostly for debugging
These files should be available for 24 hours.