pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25639-0597-BendRiver.ps) >>/Users/jc/w/tmp/Tune-25639-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/sosyourmom.com/ABC-0501-0625/0597-BendRiver.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_25639.log 260559 Log file, useful mostly for debugging
Tune-25639-0597-BendRiver.abc 677 ABC music file with the extracted tune(s)
Tune-25639-0597-BendRiver.ps 37162 PostScript
Tune-25639-0597-BendRiver.txt 677 Plain-text file with the extracted tune(s)
Tune-25639-get.log 7404 Log file, useful mostly for debugging
These files should be available for 24 hours.