pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7287-Pols_Orsa4.ps) >>/Users/jc/w/tmp/Tune-7287-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/scand/Pols_Orsa4.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_7287.log 273091 Log file, useful mostly for debugging
Coll_72871.log 252015 Log file, useful mostly for debugging
Coll_72872.log 1012641 Log file, useful mostly for debugging
Coll_72878.log 490869 Log file, useful mostly for debugging
Coll_72879.log 247801 Log file, useful mostly for debugging
Form_72875.log 916 Log file, useful mostly for debugging
Tune-7287-Pols_Orsa4.abc 206 ABC music file with the extracted tune(s)
Tune-7287-Pols_Orsa4.ps 32948 PostScript
Tune-7287-Pols_Orsa4.txt 206 Plain-text file with the extracted tune(s)
Tune-7287-get.log 188000 Log file, useful mostly for debugging
Tune-72870-get.log 229814 Log file, useful mostly for debugging
Tune-72875-get.log 7218 Log file, useful mostly for debugging
Tune-72879-get.log 3705 Log file, useful mostly for debugging
These files should be available for 24 hours.