pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-42187-Johan_p.ps) >>/Users/jc/w/tmp/Tune-42187-get.log 2>&1" returned status 256
http://www.folkwiki.se/pub/cache/Johan_på_loftet_6627b0.abcm.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
Tune-42187-Johan_p.abc 469 ABC music file with the extracted tune(s)
Tune-42187-Johan_p.ps 36215 PostScript
Tune-42187-Johan_p.txt 469 Plain-text file with the extracted tune(s)
Tune-42187-get.log 4830 Log file, useful mostly for debugging
These files should be available for 24 hours.