pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9492-Mazurkas.ps) >>/Users/jc/w/tmp/Tune-9492-get.log 2>&1" returned status 256
http://jjaquier.free.fr/midifiles/abc/Mazurkas.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_94920.log 65534 Log file, useful mostly for debugging
Coll_94927.log 262609 Log file, useful mostly for debugging
Form_94921.log 720 Log file, useful mostly for debugging
Tune-9492-Mazurkas.abc 223 ABC music file with the extracted tune(s)
Tune-9492-Mazurkas.ps 33942 PostScript
Tune-9492-Mazurkas.txt 223 Plain-text file with the extracted tune(s)
Tune-9492-get.log 5704 Log file, useful mostly for debugging
Tune-94925-get.log 5459 Log file, useful mostly for debugging
These files should be available for 24 hours.