pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3555-BobODowallyS.ps) >>/Users/jc/w/tmp/Tune-3555-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/misc/BobODowallyS.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-3555-BobODowallyS.abc 540 ABC music file with the extracted tune(s)
Tune-3555-BobODowallyS.ps 35189 PostScript
Tune-3555-BobODowallyS.txt 540 Plain-text file with the extracted tune(s)
Tune-3555-get.log 9518 Log file, useful mostly for debugging
Tune-35555-get.log 3956027 Log file, useful mostly for debugging
Tune-35559-get.log 30001 Log file, useful mostly for debugging
These files should be available for 24 hours.