pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8302-Rapper1.ps) >>/Users/jc/w/tmp/Tune-8302-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/England/Rapper1.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_83023.log 144093 Log file, useful mostly for debugging
Form_83024.log 973 Log file, useful mostly for debugging
Tune-8302-Rapper1.abc 470 ABC music file with the extracted tune(s)
Tune-8302-Rapper1.ps 34978 PostScript
Tune-8302-Rapper1.txt 470 Plain-text file with the extracted tune(s)
Tune-8302-get.log 18443 Log file, useful mostly for debugging
Tune-83023-get.log 133158 Log file, useful mostly for debugging
These files should be available for 24 hours.