pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-14532-John_Peel.ps) >>/Users/jc/w/tmp/Tune-14532-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/back.numachi.com/John_Peel.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-14532-John_Peel.abc 141 ABC music file with the extracted tune(s)
Tune-14532-John_Peel.ps 32382 PostScript
Tune-14532-John_Peel.txt 141 Plain-text file with the extracted tune(s)
Tune-14532-get.log 4408 Log file, useful mostly for debugging
These files should be available for 24 hours.