pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-105-Magowans_Jig-C-16-2.ps) >>/Users/jc/w/tmp/Tune-105-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/slipjig/Magowans_Jig-C-16-2.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_10546.log 150578 Log file, useful mostly for debugging
Coll_10578.log 533481 Log file, useful mostly for debugging
Coll_10595.log 1024880 Log file, useful mostly for debugging
Tune-105-Magowans_Jig-C-16-2.abc 441 ABC music file with the extracted tune(s)
Tune-105-Magowans_Jig-C-16-2.ps 34452 PostScript
Tune-105-Magowans_Jig-C-16-2.txt 441 Plain-text file with the extracted tune(s)
Tune-105-get.log 8513 Log file, useful mostly for debugging
Tune-10511-get.log 5275 Log file, useful mostly for debugging
Tune-10513-get.log 3984 Log file, useful mostly for debugging
Tune-10514-get.log 3598 Log file, useful mostly for debugging
Tune-10521-get.log 4005 Log file, useful mostly for debugging
Tune-10527-get.log 4194 Log file, useful mostly for debugging
Tune-10529-get.log 3482 Log file, useful mostly for debugging
Tune-10538-get.log 5083 Log file, useful mostly for debugging
Tune-10543-get.log 5505 Log file, useful mostly for debugging
Tune-10548-get.log 8990 Log file, useful mostly for debugging
Tune-10550-get.log 5228 Log file, useful mostly for debugging
Tune-10557-get.log 5378 Log file, useful mostly for debugging
Tune-10558-get.log 5471 Log file, useful mostly for debugging
Tune-1056-get.log 3396 Log file, useful mostly for debugging
Tune-10561-get.log 3542 Log file, useful mostly for debugging
Tune-10562-get.log 5609 Log file, useful mostly for debugging
Tune-10564-get.log 5732 Log file, useful mostly for debugging
Tune-10576-get.log 4654 Log file, useful mostly for debugging
Tune-1058-get.log 4471 Log file, useful mostly for debugging
Tune-10585-get.log 4609 Log file, useful mostly for debugging
Tune-10589-get.log 5528 Log file, useful mostly for debugging
Tune-10596-get.log 4637 Log file, useful mostly for debugging
These files should be available for 24 hours.