pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-34834-20251_Hardwicks_March.ps) >>/Users/jc/w/tmp/Tune-34834-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20251_Hardwicks_March.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-34834-20251_Hardwicks_March.abc 1454 ABC music file with the extracted tune(s)
Tune-34834-20251_Hardwicks_March.ps 43421 PostScript
Tune-34834-20251_Hardwicks_March.txt 1454 Plain-text file with the extracted tune(s)
Tune-34834-get.log 4865 Log file, useful mostly for debugging
These files should be available for 24 hours.