pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-550-4081.ps) >>/Users/jc/w/tmp/Tune-550-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/4081=Miss_Oswald_of_Auchincruive.abc2.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_55003.log 262410 Log file, useful mostly for debugging
Coll_55010.log 709618 Log file, useful mostly for debugging
Coll_55014.log 447209 Log file, useful mostly for debugging
Coll_55019.log 459810 Log file, useful mostly for debugging
Coll_5502.log 575765 Log file, useful mostly for debugging
Coll_55022.log 273610 Log file, useful mostly for debugging
Coll_55026.log 457010 Log file, useful mostly for debugging
Coll_55027.log 437410 Log file, useful mostly for debugging
Coll_55032.log 430407 Log file, useful mostly for debugging
Coll_55033.log 451410 Log file, useful mostly for debugging
Coll_55037.log 441610 Log file, useful mostly for debugging
Coll_55039.log 447210 Log file, useful mostly for debugging
Coll_55043.log 448611 Log file, useful mostly for debugging
Coll_55049.log 459811 Log file, useful mostly for debugging
Coll_55054.log 1361229 Log file, useful mostly for debugging
Coll_55060.log 883220 Log file, useful mostly for debugging
Coll_55065.log 2044251 Log file, useful mostly for debugging
Coll_55076.log 582199 Log file, useful mostly for debugging
Coll_55077.log 902820 Log file, useful mostly for debugging
Coll_55081.log 287609 Log file, useful mostly for debugging
Coll_55090.log 445810 Log file, useful mostly for debugging
Coll_55092.log 708221 Log file, useful mostly for debugging
Coll_55093.log 443009 Log file, useful mostly for debugging
Form_55012.log 959 Log file, useful mostly for debugging
Form_55021.log 894 Log file, useful mostly for debugging
Form_55048.log 999 Log file, useful mostly for debugging
Form_55071.log 949 Log file, useful mostly for debugging
Form_55075.log 1002 Log file, useful mostly for debugging
Tune-550-4081.abc 1266 ABC music file with the extracted tune(s)
Tune-550-4081.ps 41697 PostScript
Tune-550-4081.txt 1266 Plain-text file with the extracted tune(s)
Tune-550-get.log 5972 Log file, useful mostly for debugging
Tune-55011-get.log 4116 Log file, useful mostly for debugging
Tune-55050-get.log 1292 Log file, useful mostly for debugging
Tune-55054-get.log 4370 Log file, useful mostly for debugging
Tune-55059-get.log 1500 Log file, useful mostly for debugging
Tune-55066-get.log 1324 Log file, useful mostly for debugging
Tune-55089-get.log 1337 Log file, useful mostly for debugging
These files should be available for 24 hours.