pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-37179-0811_LADY_MURRAYS_REEL.ps) >>/Users/jc/w/tmp/Tune-37179-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/BostonCollection/0811_LADY_MURRAYS_REEL.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_37179.log 66344 Log file, useful mostly for debugging
Tune-37179-0811_LADY_MURRAYS_REEL.abc 460 ABC music file with the extracted tune(s)
Tune-37179-0811_LADY_MURRAYS_REEL.ps 34873 PostScript
Tune-37179-0811_LADY_MURRAYS_REEL.txt 460 Plain-text file with the extracted tune(s)
Tune-37179-get.log 4543 Log file, useful mostly for debugging
These files should be available for 24 hours.