pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-52675-Pipers_Chair_1.ps) >>/Users/jc/w/tmp/Tune-52675-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Perron-Miller/Pipers_Chair_1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_52675.log 988 Log file, useful mostly for debugging
Tune-52675-Pipers_Chair_1.abc 506 ABC music file with the extracted tune(s)
Tune-52675-Pipers_Chair_1.ps 34856 PostScript
Tune-52675-Pipers_Chair_1.txt 506 Plain-text file with the extracted tune(s)
Tune-52675-get.log 4623 Log file, useful mostly for debugging
These files should be available for 24 hours.