pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2309-20111_.ps) >>/Users/jc/w/tmp/Tune-2309-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20111_.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-2309-20111_.abc 33 ABC music file with the extracted tune(s)
Tune-2309-20111_.ps 6 PostScript
Tune-2309-20111_.txt 33 Plain-text file with the extracted tune(s)
Tune-2309-get.log 3929 Log file, useful mostly for debugging
Tune-23092-get.log 1386 Log file, useful mostly for debugging
Tune-23095-Kilkenny_Hornpipe.abc 167 ABC music file with the extracted tune(s)
Tune-23095-Kilkenny_Hornpipe.txt 167 Plain-text file with the extracted tune(s)
Tune-23095-get.log 3388 Log file, useful mostly for debugging
Tune-23096-get.log 1386 Log file, useful mostly for debugging
These files should be available for 24 hours.