pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2993-AllAlive.ps) >>/Users/jc/w/tmp/Tune-2993-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/AllAlive.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_29932.log 275900 Log file, useful mostly for debugging
Coll_29933.log 570064 Log file, useful mostly for debugging
Coll_29934.log 836130 Log file, useful mostly for debugging
Tune-2993-AllAlive.abc 2677 ABC music file with the extracted tune(s)
Tune-2993-AllAlive.ps 39327 PostScript
Tune-2993-AllAlive.txt 2677 Plain-text file with the extracted tune(s)
Tune-2993-get.log 4730 Log file, useful mostly for debugging
Tune-29932-CR35.abc 2172 ABC music file with the extracted tune(s)
Tune-29932-CR35.pdf 40302 Portable Data Format
Tune-29932-CR35.ps 47567 PostScript
Tune-29932-CR35.txt 2172 Plain-text file with the extracted tune(s)
Tune-29932-get.log 5034 Log file, useful mostly for debugging
These files should be available for 24 hours.