pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2111-4202_Mrs_Gordons_Favorite.ps) >>/Users/jc/w/tmp/Tune-2111-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/4202_Mrs_Gordons_Favorite.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_21110.log 396527 Log file, useful mostly for debugging
Coll_21111.log 1131545 Log file, useful mostly for debugging
Form_21115.log 1105 Log file, useful mostly for debugging
Form_21117.log 1137 Log file, useful mostly for debugging
Tune-2111-4202_Mrs_Gordons_Favorite.abc 1155 ABC music file with the extracted tune(s)
Tune-2111-4202_Mrs_Gordons_Favorite.ps 43591 PostScript
Tune-2111-4202_Mrs_Gordons_Favorite.txt 1155 Plain-text file with the extracted tune(s)
Tune-2111-get.log 4734 Log file, useful mostly for debugging
Tune-21110-get.log 5877 Log file, useful mostly for debugging
Tune-21115-get.log 6072 Log file, useful mostly for debugging
Tune-21116-get.log 4366 Log file, useful mostly for debugging
These files should be available for 24 hours.