pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75990-2322_Sanders_Brane.ps) >>/Users/jc/w/tmp/Tune-75990-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR12/2322_Sanders_Brane.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_75990.log 462925 Log file, useful mostly for debugging
Tune-75990-2322_Sanders_Brane.abc 797 ABC music file with the extracted tune(s)
Tune-75990-2322_Sanders_Brane.ps 38086 PostScript
Tune-75990-2322_Sanders_Brane.txt 797 Plain-text file with the extracted tune(s)
Tune-75990-get.log 4776 Log file, useful mostly for debugging
These files should be available for 24 hours.