pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-82523-Polka_HeelAndToe.ps) >>/Users/jc/w/tmp/Tune-82523-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/england/Polka_HeelAndToe.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_82523.log 275901 Log file, useful mostly for debugging
Tune-82523-Polka_HeelAndToe.abc 1511 ABC music file with the extracted tune(s)
Tune-82523-Polka_HeelAndToe.ps 41431 PostScript
Tune-82523-Polka_HeelAndToe.txt 1511 Plain-text file with the extracted tune(s)
Tune-82523-get.log 4521 Log file, useful mostly for debugging
These files should be available for 24 hours.