pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-58741-RJ_AllSets_20100820_RJ.ps) >>/Users/jc/w/tmp/Tune-58741-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/RJ/sets/RJ_AllSets_20100820_RJ.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_58741.log 70664 Log file, useful mostly for debugging
Tune-58741-RJ_AllSets_20100820_RJ.abc 459 ABC music file with the extracted tune(s)
Tune-58741-RJ_AllSets_20100820_RJ.ps 35009 PostScript
Tune-58741-RJ_AllSets_20100820_RJ.txt 459 Plain-text file with the extracted tune(s)
Tune-58741-get.log 69589 Log file, useful mostly for debugging
These files should be available for 24 hours.