pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5403-061_Maggie_Lauder.ps) >>/Users/jc/w/tmp/Tune-5403-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Chappell/061_Maggie_Lauder.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_5403.log 454209 Log file, useful mostly for debugging
Coll_54035.log 452811 Log file, useful mostly for debugging
Tune-5403-061_Maggie_Lauder.abc 527 ABC music file with the extracted tune(s)
Tune-5403-061_Maggie_Lauder.ps 35849 PostScript
Tune-5403-061_Maggie_Lauder.txt 527 Plain-text file with the extracted tune(s)
Tune-5403-get.log 4668 Log file, useful mostly for debugging
Tune-54036-get.log 1474 Log file, useful mostly for debugging
These files should be available for 24 hours.