pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-83772-MrsMaryGrantMcInnesOfDandaleith.ps) >>/Users/jc/w/tmp/Tune-83772-get.log 2>&1" returned status 256
http://www.math.mun.ca/~bshawyer/straths/MrsMaryGrantMcInnesOfDandaleith.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_83772.log 934086 Log file, useful mostly for debugging
Tune-83772-MrsMaryGrantMcInnesOfDandaleith.abc 380 ABC music file with the extracted tune(s)
Tune-83772-MrsMaryGrantMcInnesOfDandaleith.ps 37623 PostScript
Tune-83772-MrsMaryGrantMcInnesOfDandaleith.txt 380 Plain-text file with the extracted tune(s)
Tune-83772-get.log 4873 Log file, useful mostly for debugging
These files should be available for 24 hours.