pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30995-Miss_Thompson_1-A-32-4.ps) >>/Users/jc/w/tmp/Tune-30995-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/reel/Miss_Thompson_1-A-32-4.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-30995-Miss_Thompson_1-A-32-4.abc 344 ABC music file with the extracted tune(s)
Tune-30995-Miss_Thompson_1-A-32-4.ps 35794 PostScript
Tune-30995-Miss_Thompson_1-A-32-4.txt 344 Plain-text file with the extracted tune(s)
Tune-30995-get.log 4435 Log file, useful mostly for debugging
These files should be available for 24 hours.