pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-269-irish_trad_fidd_music.ps) >>/Users/jc/w/tmp/Tune-269-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Perron-Miller/irish_trad_fidd_music.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_26946.log 258044 Log file, useful mostly for debugging
Form_26925.log 886 Log file, useful mostly for debugging
Form_26948.log 861 Log file, useful mostly for debugging
Form_26998.log 823 Log file, useful mostly for debugging
Tune-269-get.log 19871 Log file, useful mostly for debugging
Tune-269-irish_trad_fidd_music.abc 0 ABC music file with the extracted tune(s)
Tune-269-irish_trad_fidd_music.ps 0 PostScript
Tune-269-irish_trad_fidd_music.txt 0 Plain-text file with the extracted tune(s)
Tune-26917-get.log 4744 Log file, useful mostly for debugging
Tune-26930-get.log 1526 Log file, useful mostly for debugging
Tune-26947-get.log 3242 Log file, useful mostly for debugging
Tune-26960-get.log 700861 Log file, useful mostly for debugging
Tune-26975-get.log 5014 Log file, useful mostly for debugging
Tune-26988-get.log 393596 Log file, useful mostly for debugging
Tune-26993-get.log 35592 Log file, useful mostly for debugging
Tune-26997-get.log 4205 Log file, useful mostly for debugging
These files should be available for 24 hours.