pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3430-Sz.ps) >>/Users/jc/w/tmp/Tune-3430-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/waltz/Szła_Dzieweczka-C,D-64-3.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Form_34303.log 877 Log file, useful mostly for debugging
Tune-3430-Sz.abc 2552 ABC music file with the extracted tune(s)
Tune-3430-Sz.ps 49962 PostScript
Tune-3430-Sz.txt 2552 Plain-text file with the extracted tune(s)
Tune-3430-get.log 4454 Log file, useful mostly for debugging
Tune-34304-get.log 1465 Log file, useful mostly for debugging
These files should be available for 24 hours.