pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-95902-BusStop_Am.ps) >>/Users/jc/w/tmp/Tune-95902-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/BusStop_Am.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_95902.log 273090 Log file, useful mostly for debugging
Tune-95902-BusStop_Am.abc 873 ABC music file with the extracted tune(s)
Tune-95902-BusStop_Am.ps 35553 PostScript
Tune-95902-BusStop_Am.txt 873 Plain-text file with the extracted tune(s)
Tune-95902-get.log 4420 Log file, useful mostly for debugging
These files should be available for 24 hours.