pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78243-DashingWhiteSergeantR.ps) >>/Users/jc/w/tmp/Tune-78243-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/500/DashingWhiteSergeantR.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-78243-DashingWhiteSergeantR.abc 677 ABC music file with the extracted tune(s)
Tune-78243-DashingWhiteSergeantR.ps 37390 PostScript
Tune-78243-DashingWhiteSergeantR.txt 677 Plain-text file with the extracted tune(s)
Tune-78243-TTAC2.abc 2175 ABC music file with the extracted tune(s)
Tune-78243-TTAC2.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-78243-TTAC2.ps 47136 PostScript
Tune-78243-TTAC2.txt 2175 Plain-text file with the extracted tune(s)
Tune-78243-get.log 10968 Log file, useful mostly for debugging
These files should be available for 24 hours.