pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6920-a2.ps) >>/Users/jc/w/tmp/Tune-6920-get.log 2>&1" returned status 256
http://www.fiddletech.com/music/a2.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_69205.log 127018 Log file, useful mostly for debugging
Coll_69208.log 69314 Log file, useful mostly for debugging
Coll_69209.log 269559 Log file, useful mostly for debugging
Find_69204.log 1503 Log file, useful mostly for debugging
Form_69201.log 735 Log file, useful mostly for debugging
Form_69207.log 757 Log file, useful mostly for debugging
Form_69208.log 1490 Log file, useful mostly for debugging
Tune-6920-a2.abc 236 ABC music file with the extracted tune(s)
Tune-6920-a2.ps 34508 PostScript
Tune-6920-a2.txt 236 Plain-text file with the extracted tune(s)
Tune-6920-get.log 3898 Log file, useful mostly for debugging
Tune-69204-get.log 3724 Log file, useful mostly for debugging
Tune-69205-get.log 8297 Log file, useful mostly for debugging
Tune-69206-get.log 1393 Log file, useful mostly for debugging
Tune-69207-get.log 5097 Log file, useful mostly for debugging
These files should be available for 24 hours.