pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33344-pgh_session_tunebook.ps) >>/Users/jc/w/tmp/Tune-33344-get.log 2>&1" returned status 256
http://pghardy.net/concertina/tunebooks/pgh_session_tunebook.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
Tune-33344-get.log 4481 Log file, useful mostly for debugging
Tune-33344-pgh_session_tunebook.abc 582 ABC music file with the extracted tune(s)
Tune-33344-pgh_session_tunebook.ps 35866 PostScript
Tune-33344-pgh_session_tunebook.txt 582 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.