pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5855-11091_.ps) >>/Users/jc/w/tmp/Tune-5855-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/11091_.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-5855-11091_.abc 33 ABC music file with the extracted tune(s)
Tune-5855-11091_.ps 6 PostScript
Tune-5855-11091_.txt 33 Plain-text file with the extracted tune(s)
Tune-5855-get.log 8561 Log file, useful mostly for debugging
Tune-58551-get.log 4391 Log file, useful mostly for debugging
Tune-58552-24CountryDances_1798_Bland_Weller.abc 170 ABC music file with the extracted tune(s)
Tune-58552-24CountryDances_1798_Bland_Weller.txt 170 Plain-text file with the extracted tune(s)
Tune-58552-get.log 9406 Log file, useful mostly for debugging
Tune-58553-get.log 11571 Log file, useful mostly for debugging
Tune-58554-get.log 13267 Log file, useful mostly for debugging
Tune-58555-get.log 3938 Log file, useful mostly for debugging
Tune-58557-get.log 4616 Log file, useful mostly for debugging
Tune-58558-get.log 13087 Log file, useful mostly for debugging
Tune-58559-24CountryDances_1774_Thompson.abc 170 ABC music file with the extracted tune(s)
Tune-58559-24CountryDances_1774_Thompson.ps 6 PostScript
Tune-58559-24CountryDances_1774_Thompson.txt 170 Plain-text file with the extracted tune(s)
Tune-58559-get.log 4535 Log file, useful mostly for debugging
These files should be available for 24 hours.