pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51818-YankeeDoodleBoyGCEA-F.ps) >>/Users/jc/w/tmp/Tune-51818-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/YankeeDoodleBoyGCEA-F.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_51818.log 65804 Log file, useful mostly for debugging
Tune-51818-YankeeDoodleBoyGCEA-F.abc 681 ABC music file with the extracted tune(s)
Tune-51818-YankeeDoodleBoyGCEA-F.ps 36405 PostScript
Tune-51818-YankeeDoodleBoyGCEA-F.txt 681 Plain-text file with the extracted tune(s)
Tune-51818-get.log 11319 Log file, useful mostly for debugging
These files should be available for 24 hours.