pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-26400-042_South_Sea.ps) >>/Users/jc/w/tmp/Tune-26400-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Straight_Skillern/042_South_Sea.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_26400.log 261851 Log file, useful mostly for debugging
Tune-26400-042_South_Sea.abc 738 ABC music file with the extracted tune(s)
Tune-26400-042_South_Sea.ps 33395 PostScript
Tune-26400-042_South_Sea.txt 738 Plain-text file with the extracted tune(s)
Tune-26400-get.log 4575 Log file, useful mostly for debugging
These files should be available for 24 hours.