pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6254-PhilIsaacsJig.ps) >>/Users/jc/w/tmp/Tune-6254-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ryan-cole/Tunes/PhilIsaacsJig.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
Coll_62543.log 146437 Log file, useful mostly for debugging
Find_62540.log 3181 Log file, useful mostly for debugging
Find_62548.log 0 Log file, useful mostly for debugging
Form_62542.log 0 Log file, useful mostly for debugging
Form_62544.log 1698 Log file, useful mostly for debugging
Tune-6254-PhilIsaacsJig.abc 437 ABC music file with the extracted tune(s)
Tune-6254-PhilIsaacsJig.ps 37057 PostScript
Tune-6254-PhilIsaacsJig.txt 437 Plain-text file with the extracted tune(s)
Tune-6254-get.log 14203 Log file, useful mostly for debugging
Tune-62541-get.log 4769 Log file, useful mostly for debugging
Tune-62546-get.log 3123 Log file, useful mostly for debugging
Tune-62546-jigs.abc 442 ABC music file with the extracted tune(s)
Tune-62546-jigs.txt 442 Plain-text file with the extracted tune(s)
Tune-62548-get.log 7590 Log file, useful mostly for debugging
These files should be available for 24 hours.