pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-66938-047_Gigg.ps) >>/Users/jc/w/tmp/Tune-66938-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR/047_Gigg.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_66938.log 264661 Log file, useful mostly for debugging
Tune-66938-047_Gigg.abc 504 ABC music file with the extracted tune(s)
Tune-66938-047_Gigg.ps 33765 PostScript
Tune-66938-047_Gigg.txt 504 Plain-text file with the extracted tune(s)
Tune-66938-get.log 4412 Log file, useful mostly for debugging
These files should be available for 24 hours.