pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-96387-11_l_Indiscrette.ps) >>/Users/jc/w/tmp/Tune-96387-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1770/Longman_Cotillons/11_l_Indiscrette.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-96387-11_l_Indiscrette.abc 1341 ABC music file with the extracted tune(s)
Tune-96387-11_l_Indiscrette.ps 35584 PostScript
Tune-96387-11_l_Indiscrette.txt 1341 Plain-text file with the extracted tune(s)
Tune-96387-get.log 4805 Log file, useful mostly for debugging
These files should be available for 24 hours.