pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76390-282_TheHonbleHenryErskinesFavorite.ps) >>/Users/jc/w/tmp/Tune-76390-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Pringle/282_TheHonbleHenryErskinesFavorite.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_76390.log 264661 Log file, useful mostly for debugging
Tune-76390-282_TheHonbleHenryErskinesFavorite.abc 810 ABC music file with the extracted tune(s)
Tune-76390-282_TheHonbleHenryErskinesFavorite.ps 39720 PostScript
Tune-76390-282_TheHonbleHenryErskinesFavorite.txt 810 Plain-text file with the extracted tune(s)
Tune-76390-get.log 5161 Log file, useful mostly for debugging
These files should be available for 24 hours.