pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-36548-tunes.ps) >>/Users/jc/w/tmp/Tune-36548-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1771/Thompson/tunes.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_36548.log 64184 Log file, useful mostly for debugging
Tune-36548-get.log 4139 Log file, useful mostly for debugging
Tune-36548-tunes.abc 816 ABC music file with the extracted tune(s)
Tune-36548-tunes.ps 37470 PostScript
Tune-36548-tunes.txt 816 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.