pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-82101-things_are_looking_up.ps) >>/Users/jc/w/tmp/Tune-82101-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/jazz/things_are_looking_up.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-82101-get.log 7512 Log file, useful mostly for debugging
Tune-82101-things_are_looking_up.abc 1870 ABC music file with the extracted tune(s)
Tune-82101-things_are_looking_up.ps 45035 PostScript
Tune-82101-things_are_looking_up.txt 1870 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.