pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7032-30754_Missouri_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-7032-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30754_Missouri_Hornpipe.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-7032-30754_Missouri_Hornpipe.abc 731 ABC music file with the extracted tune(s)
Tune-7032-30754_Missouri_Hornpipe.ps 36028 PostScript
Tune-7032-30754_Missouri_Hornpipe.txt 731 Plain-text file with the extracted tune(s)
Tune-7032-get.log 4901 Log file, useful mostly for debugging
Tune-70322-get.log 5515 Log file, useful mostly for debugging
Tune-70328-10501.abc 900 ABC music file with the extracted tune(s)
Tune-70328-10501.txt 900 Plain-text file with the extracted tune(s)
Tune-70328-get.log 3177 Log file, useful mostly for debugging
These files should be available for 24 hours.