pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64059-oneill_ws.ps) >>/Users/jc/w/tmp/Tune-64059-get.log 2>&1" returned status 256
http://montrealsession.cechire.com/assets/abc/oneill_ws.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-64059-get.log 4244 Log file, useful mostly for debugging
Tune-64059-oneill_ws.abc 750 ABC music file with the extracted tune(s)
Tune-64059-oneill_ws.ps 38582 PostScript
Tune-64059-oneill_ws.txt 750 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.