pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24318-020_Cave_of_Enchantment.ps) >>/Users/jc/w/tmp/Tune-24318-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Straight_Skillern/020_Cave_of_Enchantment.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_24318.log 261851 Log file, useful mostly for debugging
Tune-24318-020_Cave_of_Enchantment.abc 809 ABC music file with the extracted tune(s)
Tune-24318-020_Cave_of_Enchantment.ps 35202 PostScript
Tune-24318-020_Cave_of_Enchantment.txt 809 Plain-text file with the extracted tune(s)
Tune-24318-get.log 4843 Log file, useful mostly for debugging
These files should be available for 24 hours.