pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3199-472_When_the_Hollow_Drum.ps) >>/Users/jc/w/tmp/Tune-3199-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnTreat/GftF/472_When_the_Hollow_Drum.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_31991.log 318824 Log file, useful mostly for debugging
Coll_31995.log 288545 Log file, useful mostly for debugging
Tune-3199-472_When_the_Hollow_Drum.abc 1044 ABC music file with the extracted tune(s)
Tune-3199-472_When_the_Hollow_Drum.ps 35434 PostScript
Tune-3199-472_When_the_Hollow_Drum.txt 1044 Plain-text file with the extracted tune(s)
Tune-3199-get.log 6320 Log file, useful mostly for debugging
Tune-31991-get.log 3963 Log file, useful mostly for debugging
These files should be available for 24 hours.