pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1541-20473_Oyster_River.ps) >>/Users/jc/w/tmp/Tune-1541-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20473_Oyster_River.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_15413.log 342212 Log file, useful mostly for debugging
Tune-1541-20473_Oyster_River.abc 884 ABC music file with the extracted tune(s)
Tune-1541-20473_Oyster_River.ps 36501 PostScript
Tune-1541-20473_Oyster_River.txt 884 Plain-text file with the extracted tune(s)
Tune-1541-get.log 4810 Log file, useful mostly for debugging
Tune-15411-get.log 9477 Log file, useful mostly for debugging
Tune-15412-get.log 8965 Log file, useful mostly for debugging
Tune-15415-get.log 5970 Log file, useful mostly for debugging
Tune-15418-get.log 10099 Log file, useful mostly for debugging
Tune-15419-get.log 5581 Log file, useful mostly for debugging
These files should be available for 24 hours.