pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4034-30494_Geary_Owen.ps) >>/Users/jc/w/tmp/Tune-4034-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30494_Geary_Owen.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_4034.log 881820 Log file, useful mostly for debugging
Coll_40345.log 436010 Log file, useful mostly for debugging
Coll_40347.log 466810 Log file, useful mostly for debugging
Tune-4034-30494_Geary_Owen.abc 726 ABC music file with the extracted tune(s)
Tune-4034-30494_Geary_Owen.ps 34301 PostScript
Tune-4034-30494_Geary_Owen.txt 726 Plain-text file with the extracted tune(s)
Tune-4034-get.log 10180 Log file, useful mostly for debugging
Tune-40341-get.log 1411 Log file, useful mostly for debugging
Tune-40345-get.log 1411 Log file, useful mostly for debugging
Tune-40348-get.log 4114 Log file, useful mostly for debugging
These files should be available for 24 hours.