pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1748-CCCCD.ps) >>/Users/jc/w/tmp/Tune-1748-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DanielWright/CCCCD.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_17489.log 370055 Log file, useful mostly for debugging
Form_17483.log 814 Log file, useful mostly for debugging
Tune-1748-CCCCD.abc 222986 ABC music file with the extracted tune(s)
Tune-1748-CCCCD.ps 850141 PostScript
Tune-1748-CCCCD.txt 222986 Plain-text file with the extracted tune(s)
Tune-1748-get.log 208612 Log file, useful mostly for debugging
These files should be available for 24 hours.