pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2894-039_Summer_Dancing.ps) >>/Users/jc/w/tmp/Tune-2894-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/039_Summer_Dancing.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_28941.log 288546 Log file, useful mostly for debugging
Form_28940.log 972 Log file, useful mostly for debugging
Form_28942.log 830 Log file, useful mostly for debugging
Form_28948.log 834 Log file, useful mostly for debugging
Tune-2894-039_Summer_Dancing.abc 1052 ABC music file with the extracted tune(s)
Tune-2894-039_Summer_Dancing.ps 35480 PostScript
Tune-2894-039_Summer_Dancing.txt 1052 Plain-text file with the extracted tune(s)
Tune-2894-get.log 4679 Log file, useful mostly for debugging
Tune-28940-get.log 5962 Log file, useful mostly for debugging
Tune-28941-get.log 8934 Log file, useful mostly for debugging
Tune-28947-get.log 10108 Log file, useful mostly for debugging
These files should be available for 24 hours.