pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-93641-001.ps) >>/Users/jc/w/tmp/Tune-93641-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/001=America-V2.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_93641.log 285736 Log file, useful mostly for debugging
Tune-93641-001.abc 2256 ABC music file with the extracted tune(s)
Tune-93641-001.ps 39894 PostScript
Tune-93641-001.txt 2256 Plain-text file with the extracted tune(s)
Tune-93641-get.log 5356 Log file, useful mostly for debugging
These files should be available for 24 hours.