pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-88264-Fourth_of_June.ps) >>/Users/jc/w/tmp/Tune-88264-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CCD/Fourth_of_June.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_88264.log 469791 Log file, useful mostly for debugging
Form_88264.log 832 Log file, useful mostly for debugging
Tune-88264-Fourth_of_June.abc 1160 ABC music file with the extracted tune(s)
Tune-88264-Fourth_of_June.ps 36538 PostScript
Tune-88264-Fourth_of_June.txt 1160 Plain-text file with the extracted tune(s)
Tune-88264-get.log 4496 Log file, useful mostly for debugging
These files should be available for 24 hours.