pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6516-20471_Waterloo_Dance.ps) >>/Users/jc/w/tmp/Tune-6516-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20471_Waterloo_Dance.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-53905-Tune-65164-032_Scotch_Ghost.abc 179 ABC music file with the extracted tune(s)
Tune-53905-Tune-65164-032_Scotch_Ghost.ps 6 PostScript
Tune-53905-Tune-65164-032_Scotch_Ghost.txt 179 Plain-text file with the extracted tune(s)
Tune-6516-20471_Waterloo_Dance.abc 768 ABC music file with the extracted tune(s)
Tune-6516-20471_Waterloo_Dance.ps 37303 PostScript
Tune-6516-20471_Waterloo_Dance.txt 768 Plain-text file with the extracted tune(s)
Tune-6516-get.log 4818 Log file, useful mostly for debugging
Tune-65160-get.log 4455 Log file, useful mostly for debugging
Tune-65161-get.log 3899 Log file, useful mostly for debugging
Tune-65162-get.log 6097 Log file, useful mostly for debugging
Tune-65163-get.log 5395 Log file, useful mostly for debugging
Tune-65166-get.log 4922 Log file, useful mostly for debugging
Tune-65167-get.log 11535 Log file, useful mostly for debugging
Tune-65168-get.log 7042 Log file, useful mostly for debugging
These files should be available for 24 hours.