pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6809-CR58.ps) >>/Users/jc/w/tmp/Tune-6809-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/NYE/reel/CR58.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_68092.log 8581 Log file, useful mostly for debugging
Form_68097.log 806 Log file, useful mostly for debugging
Form_68098.log 860 Log file, useful mostly for debugging
Tune-6809-CR58.abc 532 ABC music file with the extracted tune(s)
Tune-6809-CR58.ps 35746 PostScript
Tune-6809-CR58.txt 532 Plain-text file with the extracted tune(s)
Tune-6809-get.log 4611 Log file, useful mostly for debugging
Tune-68093-DaWattleOt_D.abc 356 ABC music file with the extracted tune(s)
Tune-68093-DaWattleOt_D.txt 356 Plain-text file with the extracted tune(s)
Tune-68093-get.log 10814 Log file, useful mostly for debugging
Tune-68099-get.log 1655 Log file, useful mostly for debugging
These files should be available for 24 hours.