pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5050-Ranting_Highland_Man_1.ps) >>/Users/jc/w/tmp/Tune-5050-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CCD/Ranting_Highland_Man_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
Coll_5050.log 266066 Log file, useful mostly for debugging
Coll_50500.log 1121348 Log file, useful mostly for debugging
Coll_50507.log 711972 Log file, useful mostly for debugging
Coll_50508.log 448140 Log file, useful mostly for debugging
Form_50503.log 846 Log file, useful mostly for debugging
Form_50507.log 1075 Log file, useful mostly for debugging
Form_50509.log 812 Log file, useful mostly for debugging
Tune-5050-Ranting_Highland_Man_1.abc 1363 ABC music file with the extracted tune(s)
Tune-5050-Ranting_Highland_Man_1.ps 35576 PostScript
Tune-5050-Ranting_Highland_Man_1.txt 1363 Plain-text file with the extracted tune(s)
Tune-5050-get.log 8301 Log file, useful mostly for debugging
Tune-50502-get.log 5826 Log file, useful mostly for debugging
Tune-50507-get.log 4004 Log file, useful mostly for debugging
These files should be available for 24 hours.