pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90924-RG_Mossley.ps) >>/Users/jc/w/tmp/Tune-90924-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/England/RG_Mossley.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_90924.log 292760 Log file, useful mostly for debugging
Tune-90924-RG_Mossley.abc 1724 ABC music file with the extracted tune(s)
Tune-90924-RG_Mossley.ps 47877 PostScript
Tune-90924-RG_Mossley.txt 1724 Plain-text file with the extracted tune(s)
Tune-90924-get.log 4393 Log file, useful mostly for debugging
These files should be available for 24 hours.