pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20004-1030_Bonny_Lass.ps) >>/Users/jc/w/tmp/Tune-20004-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CaledonianCountryDances/1030_Bonny_Lass.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-20004-1030_Bonny_Lass.abc 1310 ABC music file with the extracted tune(s)
Tune-20004-1030_Bonny_Lass.ps 36190 PostScript
Tune-20004-1030_Bonny_Lass.txt 1310 Plain-text file with the extracted tune(s)
Tune-20004-Madge_A.abc 447 ABC music file with the extracted tune(s)
Tune-20004-Madge_A.pdf 20017 Portable Data Format
Tune-20004-Madge_A.ps 37424 PostScript
Tune-20004-Madge_A.txt 447 Plain-text file with the extracted tune(s)
Tune-20004-get.log 10237 Log file, useful mostly for debugging
These files should be available for 24 hours.