pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1186-Spey.ps) >>/Users/jc/w/tmp/Tune-1186-get.log 2>&1" returned status 256
http://www.rudemex.co.uk/library/ABC/Spey in spate.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_11861.log 258120 Log file, useful mostly for debugging
Form_11862.log 894 Log file, useful mostly for debugging
Tune-1186-Spey.abc 0 ABC music file with the extracted tune(s)
Tune-1186-Spey.ps 0 PostScript
Tune-1186-Spey.txt 0 Plain-text file with the extracted tune(s)
Tune-1186-get.log 0 Log file, useful mostly for debugging
Tune-11867-get.log 3597 Log file, useful mostly for debugging
These files should be available for 24 hours.