pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50952-tb04.ps) >>/Users/jc/w/tmp/Tune-50952-get.log 2>&1" returned status 256
http://nigelgatherer.com/tunes/abc/tb04.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
Form_50952.log 743 Log file, useful mostly for debugging
Tune-50952-get.log 7290 Log file, useful mostly for debugging
Tune-50952-tb04.abc 310 ABC music file with the extracted tune(s)
Tune-50952-tb04.ps 34274 PostScript
Tune-50952-tb04.txt 310 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.