pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94850-Prince_Charles_Welcome_To_The_Isle_Of_Skye_R.ps) >>/Users/jc/w/tmp/Tune-94850-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/tastysoftware.com/abc/Prince_Charles_Welcome_To_The_Isle_Of_Skye_R.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
Form_94850.log 862 Log file, useful mostly for debugging
Tune-94850-Prince_Charles_Welcome_To_The_Isle_Of_Skye_R.abc 474 ABC music file with the extracted tune(s)
Tune-94850-Prince_Charles_Welcome_To_The_Isle_Of_Skye_R.ps 35358 PostScript
Tune-94850-Prince_Charles_Welcome_To_The_Isle_Of_Skye_R.txt 474 Plain-text file with the extracted tune(s)
Tune-94850-get.log 5247 Log file, useful mostly for debugging
These files should be available for 24 hours.