pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6821-Rhine_Hornpipe_Bb.ps) >>/Users/jc/w/tmp/Tune-6821-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/hornpipe/Rhine_Hornpipe_Bb.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_68212.log 1585360 Log file, useful mostly for debugging
Tune-6821-Rhine_Hornpipe_Bb.abc 604 ABC music file with the extracted tune(s)
Tune-6821-Rhine_Hornpipe_Bb.ps 36793 PostScript
Tune-6821-Rhine_Hornpipe_Bb.txt 604 Plain-text file with the extracted tune(s)
Tune-6821-get.log 4585 Log file, useful mostly for debugging
These files should be available for 24 hours.