pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-19090-Whistling_Rufus_NYPL-D--.ps) >>/Users/jc/w/tmp/Tune-19090-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/OldTime/song/Whistling_Rufus_NYPL-D--.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
Tune-19090-Whistling_Rufus_NYPL-D--.abc 1062 ABC music file with the extracted tune(s)
Tune-19090-Whistling_Rufus_NYPL-D--.ps 42366 PostScript
Tune-19090-Whistling_Rufus_NYPL-D--.txt 1062 Plain-text file with the extracted tune(s)
Tune-19090-get.log 4732 Log file, useful mostly for debugging
These files should be available for 24 hours.