pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3369-ThereBeDragons.ps) >>/Users/jc/w/tmp/Tune-3369-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/ThereBeDragons.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_33695.log 277308 Log file, useful mostly for debugging
Coll_33699.log 285735 Log file, useful mostly for debugging
Tune-3369-ThereBeDragons.abc 3121 ABC music file with the extracted tune(s)
Tune-3369-ThereBeDragons.ps 50511 PostScript
Tune-3369-ThereBeDragons.txt 3121 Plain-text file with the extracted tune(s)
Tune-3369-get.log 4923 Log file, useful mostly for debugging
Tune-33692-RoyalAlbert-001.svg 68604 Scalable Vector Graphics format
Tune-33692-RoyalAlbert.abc 1493 ABC music file with the extracted tune(s)
Tune-33692-RoyalAlbert.txt 1493 Plain-text file with the extracted tune(s)
Tune-33692-get.log 6368 Log file, useful mostly for debugging
These files should be available for 24 hours.