pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6059-30212_Biscuit_March.ps) >>/Users/jc/w/tmp/Tune-6059-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30212_Biscuit_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-6059-30212_Biscuit_March.abc 797 ABC music file with the extracted tune(s)
Tune-6059-30212_Biscuit_March.ps 36437 PostScript
Tune-6059-30212_Biscuit_March.txt 797 Plain-text file with the extracted tune(s)
Tune-6059-get.log 4793 Log file, useful mostly for debugging
Tune-60592-WelcomeHomeOldRowley_PLFD1690_316-001.svg 11724 Scalable Vector Graphics format
Tune-60592-WelcomeHomeOldRowley_PLFD1690_316.abc 405 ABC music file with the extracted tune(s)
Tune-60592-WelcomeHomeOldRowley_PLFD1690_316.txt 405 Plain-text file with the extracted tune(s)
Tune-60592-get.log 4716 Log file, useful mostly for debugging
Tune-60595-get.log 20247 Log file, useful mostly for debugging
These files should be available for 24 hours.