pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-36420-Mrs_Mac_Pherson_Of_Inveran_Complete_R.ps) >>/Users/jc/w/tmp/Tune-36420-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/tastysoftware.com/abc/Mrs_Mac_Pherson_Of_Inveran_Complete_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
Tune-36420-Mrs_Mac_Pherson_Of_Inveran_Complete_R.abc 957 ABC music file with the extracted tune(s)
Tune-36420-Mrs_Mac_Pherson_Of_Inveran_Complete_R.ps 44032 PostScript
Tune-36420-Mrs_Mac_Pherson_Of_Inveran_Complete_R.txt 957 Plain-text file with the extracted tune(s)
Tune-36420-get.log 6037 Log file, useful mostly for debugging
These files should be available for 24 hours.