pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-28196-letitsnow.ps) >>/Users/jc/w/tmp/Tune-28196-get.log 2>&1" returned status 256
http://z3.ifrm.com/79/185/0/p377473/letitsnow.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-28196-get.log 7912 Log file, useful mostly for debugging
Tune-28196-letitsnow.abc 175 ABC music file with the extracted tune(s)
Tune-28196-letitsnow.ps 31100 PostScript
Tune-28196-letitsnow.txt 175 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.