pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3893-30291-Waltz_by_Beethoven-V1.ps) >>/Users/jc/w/tmp/Tune-3893-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30291-Waltz_by_Beethoven-V1.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_38930.log 454208 Log file, useful mostly for debugging
Coll_38932.log 908421 Log file, useful mostly for debugging
Coll_38934.log 455610 Log file, useful mostly for debugging
Form_38930.log 1019 Log file, useful mostly for debugging
Tune-3893-30291-Waltz_by_Beethoven-V1.abc 1135 ABC music file with the extracted tune(s)
Tune-3893-30291-Waltz_by_Beethoven-V1.ps 39595 PostScript
Tune-3893-30291-Waltz_by_Beethoven-V1.txt 1135 Plain-text file with the extracted tune(s)
Tune-3893-get.log 5000 Log file, useful mostly for debugging
These files should be available for 24 hours.