pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4163-Mayfair_1703_PLFD1_511_CP.ps) >>/Users/jc/w/tmp/Tune-4163-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Mayfair_1703_PLFD1_511_CP.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_41634.log 656656 Log file, useful mostly for debugging
Tune-4163-Mayfair_1703_PLFD1_511_CP.abc 415 ABC music file with the extracted tune(s)
Tune-4163-Mayfair_1703_PLFD1_511_CP.ps 33851 PostScript
Tune-4163-Mayfair_1703_PLFD1_511_CP.txt 415 Plain-text file with the extracted tune(s)
Tune-4163-get.log 5571 Log file, useful mostly for debugging
Tune-41634-032_Ding_Dong_Bell.abc 724 ABC music file with the extracted tune(s)
Tune-41634-032_Ding_Dong_Bell.ps 33723 PostScript
Tune-41634-032_Ding_Dong_Bell.txt 724 Plain-text file with the extracted tune(s)
Tune-41634-get.log 4691 Log file, useful mostly for debugging
Tune-41636-1793.abc 149 ABC music file with the extracted tune(s)
Tune-41636-1793.txt 149 Plain-text file with the extracted tune(s)
Tune-41636-get.log 2716 Log file, useful mostly for debugging
These files should be available for 24 hours.