pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67351-20292_Thou_Art_Gane_Awa.ps) >>/Users/jc/w/tmp/Tune-67351-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/20292_Thou_Art_Gane_Awa.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-67351-20292_Thou_Art_Gane_Awa.abc 795 ABC music file with the extracted tune(s)
Tune-67351-20292_Thou_Art_Gane_Awa.ps 40277 PostScript
Tune-67351-20292_Thou_Art_Gane_Awa.txt 795 Plain-text file with the extracted tune(s)
Tune-67351-get.log 4675 Log file, useful mostly for debugging
These files should be available for 24 hours.