pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-31826-151035118.ps) >>/Users/jc/w/tmp/Tune-31826-get.log 2>&1" returned status 256
http://endor.seesaa.net/article/151035118.html

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-31826-151035118.abc 8110 ABC music file with the extracted tune(s)
Tune-31826-151035118.ps 6 PostScript
Tune-31826-151035118.txt 8110 Plain-text file with the extracted tune(s)
Tune-31826-get.log 23233 Log file, useful mostly for debugging
These files should be available for 24 hours.