pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-31076-UnderTheGreenwoodTree_PLFD1679_236.ps) >>/Users/jc/w/tmp/Tune-31076-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Playford/UnderTheGreenwoodTree_PLFD1679_236.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-31076-PrinceGeorge_PLFD1686_254-001.svg 11626 Scalable Vector Graphics format
Tune-31076-PrinceGeorge_PLFD1686_254.abc 351 ABC music file with the extracted tune(s)
Tune-31076-PrinceGeorge_PLFD1686_254.txt 351 Plain-text file with the extracted tune(s)
Tune-31076-UnderTheGreenwoodTree_PLFD1679_236.abc 668 ABC music file with the extracted tune(s)
Tune-31076-UnderTheGreenwoodTree_PLFD1679_236.ps 35826 PostScript
Tune-31076-UnderTheGreenwoodTree_PLFD1679_236.txt 668 Plain-text file with the extracted tune(s)
Tune-31076-get.log 10902 Log file, useful mostly for debugging
These files should be available for 24 hours.