pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-36242-traveller.ps) >>/Users/jc/w/tmp/Tune-36242-get.log 2>&1" returned status 256
http://ifdo.ca/~seymour/runabc/html/abcmatch_html/traveller.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_36242.log 264789 Log file, useful mostly for debugging
Tune-36242-get.log 4397 Log file, useful mostly for debugging
Tune-36242-traveller.abc 221 ABC music file with the extracted tune(s)
Tune-36242-traveller.ps 34778 PostScript
Tune-36242-traveller.txt 221 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.