pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-42091-20481_Jockey_to_the_Fair.ps) >>/Users/jc/w/tmp/Tune-42091-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/20481_Jockey_to_the_Fair.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_42091.log 824 Log file, useful mostly for debugging
Tune-42091-20481_Jockey_to_the_Fair.abc 701 ABC music file with the extracted tune(s)
Tune-42091-20481_Jockey_to_the_Fair.ps 36259 PostScript
Tune-42091-20481_Jockey_to_the_Fair.txt 701 Plain-text file with the extracted tune(s)
Tune-42091-get.log 4848 Log file, useful mostly for debugging
These files should be available for 24 hours.