pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3687-JubileeRoundabout.ps) >>/Users/jc/w/tmp/Tune-3687-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/england/JubileeRoundabout.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_3687.log 1043557 Log file, useful mostly for debugging
Coll_36876.log 259040 Log file, useful mostly for debugging
Coll_36878.log 861785 Log file, useful mostly for debugging
Form_36871.log 823 Log file, useful mostly for debugging
Tune-3687-JubileeRoundabout.abc 1038 ABC music file with the extracted tune(s)
Tune-3687-JubileeRoundabout.ps 37524 PostScript
Tune-3687-JubileeRoundabout.txt 1038 Plain-text file with the extracted tune(s)
Tune-3687-get.log 4514 Log file, useful mostly for debugging
Tune-36871-get.log 5632 Log file, useful mostly for debugging
Tune-36874-get.log 1302 Log file, useful mostly for debugging
Tune-36876-get.log 3613 Log file, useful mostly for debugging
Tune-36877-get.log 4036 Log file, useful mostly for debugging
Tune-36879-get.log 7399 Log file, useful mostly for debugging
These files should be available for 24 hours.