pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5724-2221_Mrs_Muir_Mackenzies_Reel.ps) >>/Users/jc/w/tmp/Tune-5724-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/2221_Mrs_Muir_Mackenzies_Reel.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_57244.log 1331830 Log file, useful mostly for debugging
Coll_57245.log 147998 Log file, useful mostly for debugging
Tune-5724-2221_Mrs_Muir_Mackenzies_Reel.abc 1154 ABC music file with the extracted tune(s)
Tune-5724-2221_Mrs_Muir_Mackenzies_Reel.ps 39089 PostScript
Tune-5724-2221_Mrs_Muir_Mackenzies_Reel.txt 1154 Plain-text file with the extracted tune(s)
Tune-5724-get.log 5005 Log file, useful mostly for debugging
Tune-57240-get.log 2838 Log file, useful mostly for debugging
These files should be available for 24 hours.