pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-48513-458.ps) >>/Users/jc/w/tmp/Tune-48513-get.log 2>&1" returned status 256
http://thesession.org/tunes/458

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_48513.log 63374 Log file, useful mostly for debugging
Tune-48513-458.abc 357 ABC music file with the extracted tune(s)
Tune-48513-458.ps 38177 PostScript
Tune-48513-458.txt 357 Plain-text file with the extracted tune(s)
Tune-48513-get.log 3888 Log file, useful mostly for debugging
These files should be available for 24 hours.