pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7834-72_FarewellToWhiskey_D.ps) >>/Users/jc/w/tmp/Tune-7834-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HillCountryTunes/72_FarewellToWhiskey_D.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-7834-72_FarewellToWhiskey_D.abc 885 ABC music file with the extracted tune(s)
Tune-7834-72_FarewellToWhiskey_D.ps 33573 PostScript
Tune-7834-72_FarewellToWhiskey_D.txt 885 Plain-text file with the extracted tune(s)
Tune-7834-get.log 4806 Log file, useful mostly for debugging
Tune-78343-get.log 4882 Log file, useful mostly for debugging
Tune-78345-Lady_of_pleasure.abc 1214 ABC music file with the extracted tune(s)
Tune-78345-Lady_of_pleasure.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-78345-Lady_of_pleasure.ps 33940 PostScript
Tune-78345-Lady_of_pleasure.txt 1214 Plain-text file with the extracted tune(s)
Tune-78345-get.log 5381 Log file, useful mostly for debugging
Tune-78346-33_Cheerily_and_Merrily.abc 437 ABC music file with the extracted tune(s)
Tune-78346-33_Cheerily_and_Merrily.pdf 10630 Portable Data Format
Tune-78346-33_Cheerily_and_Merrily.ps 33856 PostScript
Tune-78346-33_Cheerily_and_Merrily.txt 437 Plain-text file with the extracted tune(s)
Tune-78346-get.log 5651 Log file, useful mostly for debugging
These files should be available for 24 hours.