pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-19234-DustyBobsJ.ps) >>/Users/jc/w/tmp/Tune-19234-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/program/jig/DustyBobsJ.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_19234.log 780 Log file, useful mostly for debugging
Tune-19234-DustyBobsJ.abc 576 ABC music file with the extracted tune(s)
Tune-19234-DustyBobsJ.ps 36122 PostScript
Tune-19234-DustyBobsJ.txt 576 Plain-text file with the extracted tune(s)
Tune-19234-get.log 4651 Log file, useful mostly for debugging
These files should be available for 24 hours.