pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4864-Ury_Water_The_1.ps) >>/Users/jc/w/tmp/Tune-4864-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CCD/cache/Ury_Water_The_1.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_48647.log 64994 Log file, useful mostly for debugging
Coll_48649.log 69044 Log file, useful mostly for debugging
Form_4864.log 754 Log file, useful mostly for debugging
Form_48642.log 775 Log file, useful mostly for debugging
Form_48646.log 770 Log file, useful mostly for debugging
Tune-4864-Ury_Water_The_1.abc 599 ABC music file with the extracted tune(s)
Tune-4864-Ury_Water_The_1.ps 38128 PostScript
Tune-4864-Ury_Water_The_1.txt 599 Plain-text file with the extracted tune(s)
Tune-4864-get.log 4225 Log file, useful mostly for debugging
Tune-48641-get.log 4380 Log file, useful mostly for debugging
Tune-48646-get.log 8155 Log file, useful mostly for debugging
Tune-48648-get.log 4437 Log file, useful mostly for debugging
These files should be available for 24 hours.