pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4349-Book_Hopsa.ps) >>/Users/jc/w/tmp/Tune-4349-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/Book_Hopsa.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_43492.log 273090 Log file, useful mostly for debugging
Coll_43494.log 146027 Log file, useful mostly for debugging
Coll_43497.log 280115 Log file, useful mostly for debugging
Tune-4349-Book_Hopsa.abc 2404 ABC music file with the extracted tune(s)
Tune-4349-Book_Hopsa.ps 50646 PostScript
Tune-4349-Book_Hopsa.txt 2404 Plain-text file with the extracted tune(s)
Tune-4349-get.log 8806 Log file, useful mostly for debugging
Tune-43497-get.log 5767 Log file, useful mostly for debugging
These files should be available for 24 hours.