pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3556-03_SpringGrove.ps) >>/Users/jc/w/tmp/Tune-3556-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1808/Goulding/03_SpringGrove.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_3556.log 481237 Log file, useful mostly for debugging
Coll_35561.log 467388 Log file, useful mostly for debugging
Coll_35566.log 1889363 Log file, useful mostly for debugging
List35565.log 152 Log file, useful mostly for debugging
Tune-3556-03_SpringGrove.abc 974 ABC music file with the extracted tune(s)
Tune-3556-03_SpringGrove.ps 34051 PostScript
Tune-3556-03_SpringGrove.txt 974 Plain-text file with the extracted tune(s)
Tune-3556-get.log 9766 Log file, useful mostly for debugging
These files should be available for 24 hours.