pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-595-2034_the_St_Kilda_Wedding.ps) >>/Users/jc/w/tmp/Tune-595-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM2/2034_the_St_Kilda_Wedding.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_59523.log 289351 Log file, useful mostly for debugging
Coll_59555.log 9288 Log file, useful mostly for debugging
Coll_59570.log 289012 Log file, useful mostly for debugging
Find_59537.log 1821 Log file, useful mostly for debugging
Find_59560.log 1624 Log file, useful mostly for debugging
Find_59581.log 1654 Log file, useful mostly for debugging
Find_59586.log 1782 Log file, useful mostly for debugging
Find_59590.log 1654 Log file, useful mostly for debugging
Form_59539.log 875 Log file, useful mostly for debugging
List59551.log 164 Log file, useful mostly for debugging
Sess-59547.log 117 Log file, useful mostly for debugging
Tune-595-2034_the_St_Kilda_Wedding.abc 461 ABC music file with the extracted tune(s)
Tune-595-2034_the_St_Kilda_Wedding.ps 35135 PostScript
Tune-595-2034_the_St_Kilda_Wedding.txt 461 Plain-text file with the extracted tune(s)
Tune-595-get.log 4787 Log file, useful mostly for debugging
Tune-59503-get.log 1510 Log file, useful mostly for debugging
Tune-59509-get.log 1457 Log file, useful mostly for debugging
Tune-59514-get.log 1435 Log file, useful mostly for debugging
Tune-59534-get.log 1424 Log file, useful mostly for debugging
Tune-59547-get.log 1468 Log file, useful mostly for debugging
Tune-59552-get.log 1326 Log file, useful mostly for debugging
Tune-59556-get.log 1457 Log file, useful mostly for debugging
These files should be available for 24 hours.