pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1636-2187_Mrs_Mackenzie.ps) >>/Users/jc/w/tmp/Tune-1636-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM2/2187_Mrs_Mackenzie.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_16361.log 294611 Log file, useful mostly for debugging
Tune-1636-2187_Mrs_Mackenzie.abc 511 ABC music file with the extracted tune(s)
Tune-1636-2187_Mrs_Mackenzie.ps 36204 PostScript
Tune-1636-2187_Mrs_Mackenzie.txt 511 Plain-text file with the extracted tune(s)
Tune-1636-get.log 4614 Log file, useful mostly for debugging
Tune-16362-CDSS_Gems.abc 146 ABC music file with the extracted tune(s)
Tune-16362-CDSS_Gems.txt 146 Plain-text file with the extracted tune(s)
Tune-16362-get.log 3166 Log file, useful mostly for debugging
Tune-16369-CSRHW-abc1.abc 147 ABC music file with the extracted tune(s)
Tune-16369-CSRHW-abc1.txt 147 Plain-text file with the extracted tune(s)
Tune-16369-get.log 3184 Log file, useful mostly for debugging
These files should be available for 24 hours.