pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-397-10201_French_Air.ps) >>/Users/jc/w/tmp/Tune-397-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MoF/10201_French_Air.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_39746.log 159533 Log file, useful mostly for debugging
Form_39702.log 1048 Log file, useful mostly for debugging
Tune-397-10201_French_Air.abc 747 ABC music file with the extracted tune(s)
Tune-397-10201_French_Air.ps 37012 PostScript
Tune-397-10201_French_Air.txt 747 Plain-text file with the extracted tune(s)
Tune-397-get.log 4498 Log file, useful mostly for debugging
Tune-39708-get.log 1430 Log file, useful mostly for debugging
Tune-39713-get.log 1325 Log file, useful mostly for debugging
Tune-39719-get.log 1312 Log file, useful mostly for debugging
Tune-39725-get.log 1325 Log file, useful mostly for debugging
Tune-39732-get.log 1307 Log file, useful mostly for debugging
Tune-39739-get.log 1319 Log file, useful mostly for debugging
Tune-39760-get.log 1319 Log file, useful mostly for debugging
Tune-39766-get.log 1313 Log file, useful mostly for debugging
Tune-39770-get.log 1319 Log file, useful mostly for debugging
Tune-39776-get.log 1337 Log file, useful mostly for debugging
Tune-39782-get.log 1390 Log file, useful mostly for debugging
Tune-39788-get.log 1349 Log file, useful mostly for debugging
Tune-39794-get.log 1356 Log file, useful mostly for debugging
These files should be available for 24 hours.