pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20312-15092-Willie_Shaw-D-16-3.ps) >>/Users/jc/w/tmp/Tune-20312-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Book15/15092-Willie_Shaw-D-16-3.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_20312.log 338183 Log file, useful mostly for debugging
Tune-20312-15092-Willie_Shaw-D-16-3.abc 339 ABC music file with the extracted tune(s)
Tune-20312-15092-Willie_Shaw-D-16-3.ps 36030 PostScript
Tune-20312-15092-Willie_Shaw-D-16-3.txt 339 Plain-text file with the extracted tune(s)
Tune-20312-get.log 4464 Log file, useful mostly for debugging
These files should be available for 24 hours.