pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6367-CandleGill_1.ps) >>/Users/jc/w/tmp/Tune-6367-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/CandleGill_1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_63671.log 435521 Log file, useful mostly for debugging
Coll_63676.log 285735 Log file, useful mostly for debugging
Coll_63679.log 277305 Log file, useful mostly for debugging
Tune-6367-CandleGill_1.abc 374 ABC music file with the extracted tune(s)
Tune-6367-CandleGill_1.ps 33529 PostScript
Tune-6367-CandleGill_1.txt 374 Plain-text file with the extracted tune(s)
Tune-6367-get.log 4349 Log file, useful mostly for debugging
Tune-63672-get.log 5857 Log file, useful mostly for debugging
These files should be available for 24 hours.