pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4957-Hares_Foot_1.ps) >>/Users/jc/w/tmp/Tune-4957-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/reel/Hares_Foot_1.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_49571.log 261969 Log file, useful mostly for debugging
Coll_49575.log 1082936 Log file, useful mostly for debugging
Form_4957.log 864 Log file, useful mostly for debugging
Tune-4957-Hares_Foot_1.abc 380 ABC music file with the extracted tune(s)
Tune-4957-Hares_Foot_1.ps 34428 PostScript
Tune-4957-Hares_Foot_1.txt 380 Plain-text file with the extracted tune(s)
Tune-4957-get.log 5118 Log file, useful mostly for debugging
Tune-49571-get.log 3366 Log file, useful mostly for debugging
Tune-49578-get.log 3189 Log file, useful mostly for debugging
These files should be available for 24 hours.