pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1526-ACMV.ps) >>/Users/jc/w/tmp/Tune-1526-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ACMV/ACMV.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_15265.log 128908 Log file, useful mostly for debugging
Form_15261.log 741 Log file, useful mostly for debugging
Tune-1526-ACMV.abc 717 ABC music file with the extracted tune(s)
Tune-1526-ACMV.ps 36973 PostScript
Tune-1526-ACMV.txt 717 Plain-text file with the extracted tune(s)
Tune-1526-get.log 12146 Log file, useful mostly for debugging
Tune-15260-get.log 3004 Log file, useful mostly for debugging
Tune-15261-get.log 4292 Log file, useful mostly for debugging
Tune-15262-get.log 3679 Log file, useful mostly for debugging
Tune-15263-get.log 4308 Log file, useful mostly for debugging
Tune-15267-get.log 9897 Log file, useful mostly for debugging
Tune-15268-get.log 7296 Log file, useful mostly for debugging
These files should be available for 24 hours.