pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-92576-bwreels-128.ps) >>/Users/jc/w/tmp/Tune-92576-get.log 2>&1" returned status 256
http://www.novasession.org/Bog Kit/Tunes/bwreels-128.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
Tune-92576-bwreels-128.abc 335 ABC music file with the extracted tune(s)
Tune-92576-bwreels-128.ps 35799 PostScript
Tune-92576-bwreels-128.txt 335 Plain-text file with the extracted tune(s)
Tune-92576-get.log 4684 Log file, useful mostly for debugging
These files should be available for 24 hours.