pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3939-SaluteToSummer.ps) >>/Users/jc/w/tmp/Tune-3939-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/SaluteToSummer.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_39393.log 558825 Log file, useful mostly for debugging
Coll_39395.log 266067 Log file, useful mostly for debugging
Coll_39398.log 277305 Log file, useful mostly for debugging
Tune-3939-SaluteToSummer.abc 1839 ABC music file with the extracted tune(s)
Tune-3939-SaluteToSummer.ps 46094 PostScript
Tune-3939-SaluteToSummer.txt 1839 Plain-text file with the extracted tune(s)
Tune-3939-get.log 4909 Log file, useful mostly for debugging
These files should be available for 24 hours.