pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6706-Saint_Andrews_Fair.ps) >>/Users/jc/w/tmp/Tune-6706-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/program/Saint_Andrews_Fair.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_67062.log 150067 Log file, useful mostly for debugging
Coll_67069.log 266199 Log file, useful mostly for debugging
Form_67064.log 866 Log file, useful mostly for debugging
Form_67066.log 782 Log file, useful mostly for debugging
Tune-6706-Saint_Andrews_Fair.abc 514 ABC music file with the extracted tune(s)
Tune-6706-Saint_Andrews_Fair.ps 35815 PostScript
Tune-6706-Saint_Andrews_Fair.txt 514 Plain-text file with the extracted tune(s)
Tune-6706-get.log 4391 Log file, useful mostly for debugging
Tune-67061-get.log 3862 Log file, useful mostly for debugging
Tune-67067-get.log 1500 Log file, useful mostly for debugging
Tune-67068-get.log 3028 Log file, useful mostly for debugging
These files should be available for 24 hours.