pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-65453-SinkHimDoddieHighlandFling.ps) >>/Users/jc/w/tmp/Tune-65453-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ryan-cole/Tunes/SinkHimDoddieHighlandFling.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_65453.log 516524 Log file, useful mostly for debugging
Tune-65453-SinkHimDoddieHighlandFling.abc 777 ABC music file with the extracted tune(s)
Tune-65453-SinkHimDoddieHighlandFling.ps 43120 PostScript
Tune-65453-SinkHimDoddieHighlandFling.txt 777 Plain-text file with the extracted tune(s)
Tune-65453-get.log 8996 Log file, useful mostly for debugging
These files should be available for 24 hours.