pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5831-2363_la_Belle_Cathrine.ps) >>/Users/jc/w/tmp/Tune-5831-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/2363_la_Belle_Cathrine.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_58313.log 455610 Log file, useful mostly for debugging
Coll_58316.log 457008 Log file, useful mostly for debugging
Tune-5831-2363_la_Belle_Cathrine.abc 952 ABC music file with the extracted tune(s)
Tune-5831-2363_la_Belle_Cathrine.ps 38962 PostScript
Tune-5831-2363_la_Belle_Cathrine.txt 952 Plain-text file with the extracted tune(s)
Tune-5831-get.log 4711 Log file, useful mostly for debugging
These files should be available for 24 hours.