pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5063-waltzes.ps) >>/Users/jc/w/tmp/Tune-5063-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/redhawk.org/nmd/waltzes.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
Form_50634.log 734 Log file, useful mostly for debugging
Tune-5063-get.log 4298 Log file, useful mostly for debugging
Tune-5063-waltzes.abc 241 ABC music file with the extracted tune(s)
Tune-5063-waltzes.ps 33152 PostScript
Tune-5063-waltzes.txt 241 Plain-text file with the extracted tune(s)
Tune-50636-get.log 4337 Log file, useful mostly for debugging
These files should be available for 24 hours.