pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79834-2030_Aspe.ps) >>/Users/jc/w/tmp/Tune-79834-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Playford/AB/2030_Aspe.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-79834-2030_Aspe.abc 696 ABC music file with the extracted tune(s)
Tune-79834-2030_Aspe.ps 34851 PostScript
Tune-79834-2030_Aspe.txt 696 Plain-text file with the extracted tune(s)
Tune-79834-get.log 8718 Log file, useful mostly for debugging
These files should be available for 24 hours.