pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24504-30702_Only_Think_Of_That.ps) >>/Users/jc/w/tmp/Tune-24504-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30702_Only_Think_Of_That.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_24504.log 457009 Log file, useful mostly for debugging
Tune-24504-30702_Only_Think_Of_That.abc 658 ABC music file with the extracted tune(s)
Tune-24504-30702_Only_Think_Of_That.ps 33434 PostScript
Tune-24504-30702_Only_Think_Of_That.txt 658 Plain-text file with the extracted tune(s)
Tune-24504-get.log 4991 Log file, useful mostly for debugging
These files should be available for 24 hours.