pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99544-4323_Handels_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-99544-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ACMV/4323_Handels_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_99544.log 263256 Log file, useful mostly for debugging
Form_99544.log 996 Log file, useful mostly for debugging
Tune-99544-4323_Handels_Hornpipe.abc 823 ABC music file with the extracted tune(s)
Tune-99544-4323_Handels_Hornpipe.ps 36677 PostScript
Tune-99544-4323_Handels_Hornpipe.txt 823 Plain-text file with the extracted tune(s)
Tune-99544-get.log 4677 Log file, useful mostly for debugging
These files should be available for 24 hours.