pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4748-CBTunes.ps) >>/Users/jc/w/tmp/Tune-4748-get.log 2>&1" returned status 256
http://www4.ncsu.edu/~pfackler/Music/CBTunes.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
Coll_4748.log 140387 Log file, useful mostly for debugging
Form_47487.log 0 Log file, useful mostly for debugging
Tune-4748-CBTunes.abc 426 ABC music file with the extracted tune(s)
Tune-4748-CBTunes.ps 35626 PostScript
Tune-4748-CBTunes.txt 426 Plain-text file with the extracted tune(s)
Tune-4748-get.log 4189 Log file, useful mostly for debugging
Tune-47481-get.log 4079 Log file, useful mostly for debugging
Tune-47482-get.log 12287 Log file, useful mostly for debugging
Tune-47484-get.log 4378 Log file, useful mostly for debugging
Tune-47486-get.log 3095 Log file, useful mostly for debugging
Tune-47488-get.log 3037 Log file, useful mostly for debugging
These files should be available for 24 hours.