pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4962-187.ps) >>/Users/jc/w/tmp/Tune-4962-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/187=the_Tomtit-V2.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_49620.log 266066 Log file, useful mostly for debugging
Coll_49622.log 261851 Log file, useful mostly for debugging
Coll_49623.log 313836 Log file, useful mostly for debugging
Form_49622.log 1044 Log file, useful mostly for debugging
Form_49628.log 879 Log file, useful mostly for debugging
Tune-4962-187.abc 1176 ABC music file with the extracted tune(s)
Tune-4962-187.ps 34288 PostScript
Tune-4962-187.txt 1176 Plain-text file with the extracted tune(s)
Tune-4962-get.log 7671 Log file, useful mostly for debugging
Tune-49627-get.log 3665 Log file, useful mostly for debugging
These files should be available for 24 hours.