pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-28858-YellowStockings.ps) >>/Users/jc/w/tmp/Tune-28858-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/england/YellowStockings.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_28858.log 1117 Log file, useful mostly for debugging
Tune-28858-YellowStockings.abc 1963 ABC music file with the extracted tune(s)
Tune-28858-YellowStockings.ps 49022 PostScript
Tune-28858-YellowStockings.txt 1963 Plain-text file with the extracted tune(s)
Tune-28858-get.log 8886 Log file, useful mostly for debugging
These files should be available for 24 hours.