pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-12993-070_Black_and_the_Grey.ps) >>/Users/jc/w/tmp/Tune-12993-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NorthumbrianMinstrelsy/070_Black_and_the_Grey.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-12993-070_Black_and_the_Grey.abc 551 ABC music file with the extracted tune(s)
Tune-12993-070_Black_and_the_Grey.ps 37324 PostScript
Tune-12993-070_Black_and_the_Grey.txt 551 Plain-text file with the extracted tune(s)
Tune-12993-Greenholm-001.svg 16149 Scalable Vector Graphics format
Tune-12993-Greenholm.abc 444 ABC music file with the extracted tune(s)
Tune-12993-Greenholm.txt 444 Plain-text file with the extracted tune(s)
Tune-12993-get.log 8816 Log file, useful mostly for debugging
These files should be available for 24 hours.