pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-16346-19__1-On_the_Quarterdeck.ps) >>/Users/jc/w/tmp/Tune-16346-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Book19/19__1-On_the_Quarterdeck.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_16346.log 399857 Log file, useful mostly for debugging
Tune-16346-19__1-On_the_Quarterdeck.abc 533 ABC music file with the extracted tune(s)
Tune-16346-19__1-On_the_Quarterdeck.ps 35618 PostScript
Tune-16346-19__1-On_the_Quarterdeck.txt 533 Plain-text file with the extracted tune(s)
Tune-16346-get.log 5574 Log file, useful mostly for debugging
These files should be available for 24 hours.