pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5048-MM3-V2.ps) >>/Users/jc/w/tmp/Tune-5048-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM3-V2.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_5048.log 141673 Log file, useful mostly for debugging
Coll_50487.log 139253 Log file, useful mostly for debugging
Coll_50489.log 284022 Log file, useful mostly for debugging
Tune-5048-MM3-V2.abc 437 ABC music file with the extracted tune(s)
Tune-5048-MM3-V2.ps 35192 PostScript
Tune-5048-MM3-V2.txt 437 Plain-text file with the extracted tune(s)
Tune-5048-get.log 78187 Log file, useful mostly for debugging
Tune-50485-get.log 27935 Log file, useful mostly for debugging
Tune-50487-get.log 4646 Log file, useful mostly for debugging
These files should be available for 24 hours.