pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7653-tb16.ps) >>/Users/jc/w/tmp/Tune-7653-get.log 2>&1" returned status 256
http://www.nigelgatherer.com/tunes/abc/tb16.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_76538.log 848 Log file, useful mostly for debugging
Tune-7653-get.log 4288 Log file, useful mostly for debugging
Tune-7653-tb16.abc 625 ABC music file with the extracted tune(s)
Tune-7653-tb16.ps 42446 PostScript
Tune-7653-tb16.txt 625 Plain-text file with the extracted tune(s)
Tune-76530-SSF_Dance.abc 0 ABC music file with the extracted tune(s)
Tune-76530-SSF_Dance.txt 0 Plain-text file with the extracted tune(s)
Tune-76530-get.log 3083 Log file, useful mostly for debugging
These files should be available for 24 hours.