pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25998-SSEIFA_v4.ps) >>/Users/jc/w/tmp/Tune-25998-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/Rare_Small/SSEIFA_v4.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-25998-SSEIFA_v4.abc 149069 ABC music file with the extracted tune(s)
Tune-25998-SSEIFA_v4.ps 1124191 PostScript
Tune-25998-SSEIFA_v4.txt 149069 Plain-text file with the extracted tune(s)
Tune-25998-get.log 146541 Log file, useful mostly for debugging
These files should be available for 24 hours.