pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-57007-3021_Andrew_Kerr.ps) >>/Users/jc/w/tmp/Tune-57007-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CaledonianCountryDances/3021_Andrew_Kerr.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_57007.log 1784 Log file, useful mostly for debugging
Tune-57007-3021_Andrew_Kerr.abc 1231 ABC music file with the extracted tune(s)
Tune-57007-3021_Andrew_Kerr.ps 34931 PostScript
Tune-57007-3021_Andrew_Kerr.txt 1231 Plain-text file with the extracted tune(s)
Tune-57007-get.log 8890 Log file, useful mostly for debugging
These files should be available for 24 hours.