pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9121-Mrs_Marshall_of_the_Currochs.ps) >>/Users/jc/w/tmp/Tune-9121-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/OriginallyMine/Mrs_Marshall_of_the_Currochs.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_91213.log 274494 Log file, useful mostly for debugging
Coll_91216.log 275900 Log file, useful mostly for debugging
Tune-9121-Mrs_Marshall_of_the_Currochs.abc 1513 ABC music file with the extracted tune(s)
Tune-9121-Mrs_Marshall_of_the_Currochs.ps 48341 PostScript
Tune-9121-Mrs_Marshall_of_the_Currochs.txt 1513 Plain-text file with the extracted tune(s)
Tune-9121-get.log 4896 Log file, useful mostly for debugging
Tune-91211-get.log 1355 Log file, useful mostly for debugging
Tune-91215-get.log 1376 Log file, useful mostly for debugging
Tune-91219-get.log 3776 Log file, useful mostly for debugging
These files should be available for 24 hours.