pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6415-MontgomeriesRant4.ps) >>/Users/jc/w/tmp/Tune-6415-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/MontgomeriesRant4.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_64154.log 281520 Log file, useful mostly for debugging
Tune-6415-MontgomeriesRant4.abc 2039 ABC music file with the extracted tune(s)
Tune-6415-MontgomeriesRant4.ps 47872 PostScript
Tune-6415-MontgomeriesRant4.txt 2039 Plain-text file with the extracted tune(s)
Tune-6415-get.log 5025 Log file, useful mostly for debugging
Tune-64154-JovanoJovanke_Gm.abc 849 ABC music file with the extracted tune(s)
Tune-64154-JovanoJovanke_Gm.pdf 22446 Portable Data Format
Tune-64154-JovanoJovanke_Gm.ps 36905 PostScript
Tune-64154-JovanoJovanke_Gm.txt 849 Plain-text file with the extracted tune(s)
Tune-64154-Londonderry_Air.abc 3028 ABC music file with the extracted tune(s)
Tune-64154-Londonderry_Air.pdf 34591 Portable Data Format
Tune-64154-Londonderry_Air.ps 42498 PostScript
Tune-64154-Londonderry_Air.txt 3028 Plain-text file with the extracted tune(s)
Tune-64154-get.log 13317 Log file, useful mostly for debugging
Tune-64155-SummerAssembly.abc 1756 ABC music file with the extracted tune(s)
Tune-64155-SummerAssembly.ps 44405 PostScript
Tune-64155-SummerAssembly.txt 1756 Plain-text file with the extracted tune(s)
Tune-64155-get.log 4953 Log file, useful mostly for debugging
Tune-64156-HomorodiKortanc.abc 669 ABC music file with the extracted tune(s)
Tune-64156-HomorodiKortanc.ps 37088 PostScript
Tune-64156-HomorodiKortanc.txt 669 Plain-text file with the extracted tune(s)
Tune-64156-get.log 4579 Log file, useful mostly for debugging
These files should be available for 24 hours.