pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-99777-2100_Niel_Gows_Recovery.ps) >>/Users/jc/w/tmp/Tune-99777-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kerr/MM2/2100_Niel_Gows_Recovery.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-99777-2100_Niel_Gows_Recovery.abc 544 ABC music file with the extracted tune(s)
Tune-99777-2100_Niel_Gows_Recovery.ps 36154 PostScript
Tune-99777-2100_Niel_Gows_Recovery.txt 544 Plain-text file with the extracted tune(s)
Tune-99777-Hamilton_HUTB2-1846-V2.abc 159 ABC music file with the extracted tune(s)
Tune-99777-Hamilton_HUTB2-1846-V2.ps 6 PostScript
Tune-99777-Hamilton_HUTB2-1846-V2.txt 159 Plain-text file with the extracted tune(s)
Tune-99777-get.log 9135 Log file, useful mostly for debugging
These files should be available for 24 hours.