X:415 not found in http://lesters-tune-a-day.blogspot.fr/2015/
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-29547-2015.ps) >>/Users/jc/w/tmp/Tune-29547-get.log 2>&1" returned status 256
http://lesters-tune-a-day.blogspot.fr/2015/

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-29547-2015.abc 0 ABC music file with the extracted tune(s)
Tune-29547-2015.ps 6 PostScript
Tune-29547-2015.txt 0 Plain-text file with the extracted tune(s)
Tune-29547-get.log 4074 Log file, useful mostly for debugging
These files should be available for 24 hours.