pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-13552-Book_Masurka.ps) >>/Users/jc/w/tmp/Tune-13552-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/scand/Book_Masurka.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_13552.log 877 Log file, useful mostly for debugging
Tune-13552-Book_Masurka.abc 9054 ABC music file with the extracted tune(s)
Tune-13552-Book_Masurka.ps 133833 PostScript
Tune-13552-Book_Masurka.txt 9054 Plain-text file with the extracted tune(s)
Tune-13552-get.log 13014 Log file, useful mostly for debugging
These files should be available for 24 hours.