pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51585-031_Coffee_and_Tea.ps) >>/Users/jc/w/tmp/Tune-51585-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NorthumbrianMinstrelsy/031_Coffee_and_Tea.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-51585-031_Coffee_and_Tea.abc 454 ABC music file with the extracted tune(s)
Tune-51585-031_Coffee_and_Tea.ps 35354 PostScript
Tune-51585-031_Coffee_and_Tea.txt 454 Plain-text file with the extracted tune(s)
Tune-51585-1321_BIRDS_WALTZ.abc 1254 ABC music file with the extracted tune(s)
Tune-51585-1321_BIRDS_WALTZ.pdf 38830 Portable Data Format
Tune-51585-1321_BIRDS_WALTZ.ps 44258 PostScript
Tune-51585-1321_BIRDS_WALTZ.txt 1254 Plain-text file with the extracted tune(s)
Tune-51585-get.log 15736 Log file, useful mostly for debugging
These files should be available for 24 hours.