pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5067-30452_Miss_Greens_Fancy.ps) >>/Users/jc/w/tmp/Tune-5067-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30452_Miss_Greens_Fancy.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_5067.log 466809 Log file, useful mostly for debugging
Coll_50676.log 466811 Log file, useful mostly for debugging
Tune-5067-30452_Miss_Greens_Fancy.abc 703 ABC music file with the extracted tune(s)
Tune-5067-30452_Miss_Greens_Fancy.ps 34107 PostScript
Tune-5067-30452_Miss_Greens_Fancy.txt 703 Plain-text file with the extracted tune(s)
Tune-5067-get.log 4900 Log file, useful mostly for debugging
These files should be available for 24 hours.