pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8161-SSF_Dance.ps) >>/Users/jc/w/tmp/Tune-8161-get.log 2>&1" returned status 256
http://www.scottishfiddlers.com/Sydney/Music/ABC/SSF_Dance.htm

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_81619.log 302859 Log file, useful mostly for debugging
Find_81613.log 1459 Log file, useful mostly for debugging
Form_81611.log 823 Log file, useful mostly for debugging
Form_81617.log 827 Log file, useful mostly for debugging
Tune-8161-SSF_Dance.abc 911 ABC music file with the extracted tune(s)
Tune-8161-SSF_Dance.ps 45150 PostScript
Tune-8161-SSF_Dance.txt 911 Plain-text file with the extracted tune(s)
Tune-8161-get.log 4374 Log file, useful mostly for debugging
Tune-81611-get.log 7875 Log file, useful mostly for debugging
Tune-81614-get.log 1824 Log file, useful mostly for debugging
Tune-81615-get.log 1567 Log file, useful mostly for debugging
Tune-81616-get.log 4043 Log file, useful mostly for debugging
These files should be available for 24 hours.