pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23864-Miss_Burchells_Humour.ps) >>/Users/jc/w/tmp/Tune-23864-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Miss_Burchells_Humour.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-23864-Miss_Burchells_Humour.abc 505 ABC music file with the extracted tune(s)
Tune-23864-Miss_Burchells_Humour.ps 35418 PostScript
Tune-23864-Miss_Burchells_Humour.txt 505 Plain-text file with the extracted tune(s)
Tune-23864-get.log 8816 Log file, useful mostly for debugging
These files should be available for 24 hours.