pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-89949-SelectionOfDancesReelsAndWaltzes_1.ps) >>/Users/jc/w/tmp/Tune-89949-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Button_Whitaker/SelectionOfDancesReelsAndWaltzes_1.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
Form_89949.log 734 Log file, useful mostly for debugging
Tune-89949-SelectionOfDancesReelsAndWaltzes_1.abc 1260 ABC music file with the extracted tune(s)
Tune-89949-SelectionOfDancesReelsAndWaltzes_1.ps 42275 PostScript
Tune-89949-SelectionOfDancesReelsAndWaltzes_1.txt 1260 Plain-text file with the extracted tune(s)
Tune-89949-get.log 4953 Log file, useful mostly for debugging
These files should be available for 24 hours.