pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23279-Goulding_Twentyfour_Country_Dances_For_the_Year_1808_PD.ps) >>/Users/jc/w/tmp/Tune-23279-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1808/Goulding_Twentyfour_Country_Dances_For_the_Year_1808_PD.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_23279.log 1711 Log file, useful mostly for debugging
Tune-23279-Goulding_Twentyfour_Country_Dances_For_the_Year_1808_PD.abc 296 ABC music file with the extracted tune(s)
Tune-23279-Goulding_Twentyfour_Country_Dances_For_the_Year_1808_PD.ps 35149 PostScript
Tune-23279-Goulding_Twentyfour_Country_Dances_For_the_Year_1808_PD.txt 296 Plain-text file with the extracted tune(s)
Tune-23279-get.log 8389 Log file, useful mostly for debugging
These files should be available for 24 hours.