pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5390-4321_Glenbuckets_Breeks.ps) >>/Users/jc/w/tmp/Tune-5390-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/4321_Glenbuckets_Breeks.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-5390-4321_Glenbuckets_Breeks.abc 931 ABC music file with the extracted tune(s)
Tune-5390-4321_Glenbuckets_Breeks.ps 38308 PostScript
Tune-5390-4321_Glenbuckets_Breeks.txt 931 Plain-text file with the extracted tune(s)
Tune-5390-get.log 4737 Log file, useful mostly for debugging
Tune-53905-get.log 6147 Log file, useful mostly for debugging
Tune-53907-get.log 5158 Log file, useful mostly for debugging
Tune-53908-get.log 4777 Log file, useful mostly for debugging
Tune-53909-get.log 4157 Log file, useful mostly for debugging
These files should be available for 24 hours.