pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90692-14_Smash_the_Windows.ps) >>/Users/jc/w/tmp/Tune-90692-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1809/Cahusac_JC/14_Smash_the_Windows.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-90692-14_Smash_the_Windows.abc 1063 ABC music file with the extracted tune(s)
Tune-90692-14_Smash_the_Windows.ps 33658 PostScript
Tune-90692-14_Smash_the_Windows.txt 1063 Plain-text file with the extracted tune(s)
Tune-90692-get.log 4779 Log file, useful mostly for debugging
These files should be available for 24 hours.