pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23065-Ash_Plant.ps) >>/Users/jc/w/tmp/Tune-23065-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/gradcenter.marlboro.edu/abc/Reels/Ash_Plant.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-23065-Ash_Plant.abc 159 ABC music file with the extracted tune(s)
Tune-23065-Ash_Plant.ps 33854 PostScript
Tune-23065-Ash_Plant.txt 159 Plain-text file with the extracted tune(s)
Tune-23065-get.log 4331 Log file, useful mostly for debugging
These files should be available for 24 hours.