pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21157-10811_Lady_Charlotte_Durham.ps) >>/Users/jc/w/tmp/Tune-21157-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/10811_Lady_Charlotte_Durham.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-21157-10811_Lady_Charlotte_Durham.abc 768 ABC music file with the extracted tune(s)
Tune-21157-10811_Lady_Charlotte_Durham.ps 38354 PostScript
Tune-21157-10811_Lady_Charlotte_Durham.txt 768 Plain-text file with the extracted tune(s)
Tune-21157-20432_Last_Rose_of_Summer.abc 648 ABC music file with the extracted tune(s)
Tune-21157-20432_Last_Rose_of_Summer.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-21157-20432_Last_Rose_of_Summer.ps 36928 PostScript
Tune-21157-20432_Last_Rose_of_Summer.txt 648 Plain-text file with the extracted tune(s)
Tune-21157-get.log 10326 Log file, useful mostly for debugging
These files should be available for 24 hours.