pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-18109-Punchanellos_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-18109-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CCD/Punchanellos_Hornpipe.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_18109.log 261851 Log file, useful mostly for debugging
Form_18109.log 1016 Log file, useful mostly for debugging
Tune-18109-Punchanellos_Hornpipe.abc 1382 ABC music file with the extracted tune(s)
Tune-18109-Punchanellos_Hornpipe.ps 34003 PostScript
Tune-18109-Punchanellos_Hornpipe.txt 1382 Plain-text file with the extracted tune(s)
Tune-18109-get.log 5224 Log file, useful mostly for debugging
These files should be available for 24 hours.