pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-29847-129_a_Merry_Heart.ps) >>/Users/jc/w/tmp/Tune-29847-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/129_a_Merry_Heart.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_29847.log 830 Log file, useful mostly for debugging
Tune-29847-129_a_Merry_Heart.abc 2739 ABC music file with the extracted tune(s)
Tune-29847-129_a_Merry_Heart.ps 45492 PostScript
Tune-29847-129_a_Merry_Heart.txt 2739 Plain-text file with the extracted tune(s)
Tune-29847-get.log 5254 Log file, useful mostly for debugging
These files should be available for 24 hours.