pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-68293-2090-Willie_Duncan-V1.ps) >>/Users/jc/w/tmp/Tune-68293-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM2/2090-Willie_Duncan-V1.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
Form_68293.log 470 Log file, useful mostly for debugging
Tune-68293-2090-Willie_Duncan-V1.abc 547 ABC music file with the extracted tune(s)
Tune-68293-2090-Willie_Duncan-V1.ps 37098 PostScript
Tune-68293-2090-Willie_Duncan-V1.txt 547 Plain-text file with the extracted tune(s)
Tune-68293-get.log 4521 Log file, useful mostly for debugging
These files should be available for 24 hours.