pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8477-2243_a_Glass_of_Potheen.ps) >>/Users/jc/w/tmp/Tune-8477-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM2/2243_a_Glass_of_Potheen.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-8477-2243_a_Glass_of_Potheen.abc 447 ABC music file with the extracted tune(s)
Tune-8477-2243_a_Glass_of_Potheen.ps 34083 PostScript
Tune-8477-2243_a_Glass_of_Potheen.txt 447 Plain-text file with the extracted tune(s)
Tune-8477-Collections.abc 148 ABC music file with the extracted tune(s)
Tune-8477-Collections.ps 6 PostScript
Tune-8477-Collections.txt 148 Plain-text file with the extracted tune(s)
Tune-8477-get.log 16392 Log file, useful mostly for debugging
Tune-84773-get.log 4131 Log file, useful mostly for debugging
Tune-84774-get.log 4195 Log file, useful mostly for debugging
These files should be available for 24 hours.