pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76062-31_New_Scotch-Measure.ps) >>/Users/jc/w/tmp/Tune-76062-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/COST/31_New_Scotch-Measure.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_76062.log 459811 Log file, useful mostly for debugging
Tune-76062-31_New_Scotch-Measure.abc 708 ABC music file with the extracted tune(s)
Tune-76062-31_New_Scotch-Measure.ps 34956 PostScript
Tune-76062-31_New_Scotch-Measure.txt 708 Plain-text file with the extracted tune(s)
Tune-76062-get.log 4717 Log file, useful mostly for debugging
These files should be available for 24 hours.