pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7775-Polka04.ps) >>/Users/jc/w/tmp/Tune-7775-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/scand/Polka04.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_77753.log 246395 Log file, useful mostly for debugging
Coll_77759.log 259041 Log file, useful mostly for debugging
Form_77750.log 897 Log file, useful mostly for debugging
Tune-7775-Polka04.abc 2819 ABC music file with the extracted tune(s)
Tune-7775-Polka04.ps 57117 PostScript
Tune-7775-Polka04.txt 2819 Plain-text file with the extracted tune(s)
Tune-7775-get.log 187316 Log file, useful mostly for debugging
Tune-77751-get.log 43113 Log file, useful mostly for debugging
Tune-77756-get.log 1386 Log file, useful mostly for debugging
Tune-77757-get.log 3668 Log file, useful mostly for debugging
Tune-77759-get.log 7634 Log file, useful mostly for debugging
These files should be available for 24 hours.