X:38 not found in http://www.colinhume.com/ABC.txt
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6406-ABC.ps) >>/Users/jc/w/tmp/Tune-6406-get.log 2>&1" returned status 256
http://www.colinhume.com/ABC.txt

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_64060.log 130102 Log file, useful mostly for debugging
Coll_64063.log 1139041 Log file, useful mostly for debugging
Coll_64064.log 137362 Log file, useful mostly for debugging
Coll_64066.log 266199 Log file, useful mostly for debugging
Coll_64067.log 270429 Log file, useful mostly for debugging
Form_64060.log 877 Log file, useful mostly for debugging
Form_64062.log 793 Log file, useful mostly for debugging
Form_64066.log 860 Log file, useful mostly for debugging
Tune-6406-ABC.abc 0 ABC music file with the extracted tune(s)
Tune-6406-ABC.ps 6 PostScript
Tune-6406-ABC.txt 0 Plain-text file with the extracted tune(s)
Tune-6406-get.log 8134 Log file, useful mostly for debugging
Tune-64060-get.log 3729 Log file, useful mostly for debugging
These files should be available for 24 hours.