pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2679-p7.ps) >>/Users/jc/w/tmp/Tune-2679-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/p7.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_2679.log 904220 Log file, useful mostly for debugging
Coll_26797.log 464008 Log file, useful mostly for debugging
Form_26794.log 972 Log file, useful mostly for debugging
Tune-2679-get.log 4290 Log file, useful mostly for debugging
Tune-2679-p7.abc 596 ABC music file with the extracted tune(s)
Tune-2679-p7.ps 31101 PostScript
Tune-2679-p7.txt 596 Plain-text file with the extracted tune(s)
Tune-26792-get.log 1467 Log file, useful mostly for debugging
Tune-26799-get.log 5004 Log file, useful mostly for debugging
These files should be available for 24 hours.