pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-62273-arbeau_ps.ps) >>/Users/jc/w/tmp/Tune-62273-get.log 2>&1" returned status 256
http://anamnese.online.fr/site2/abc/arbeau_ps.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-62273-arbeau_ps.abc 203 ABC music file with the extracted tune(s)
Tune-62273-arbeau_ps.ps 31523 PostScript
Tune-62273-arbeau_ps.txt 203 Plain-text file with the extracted tune(s)
Tune-62273-get.log 4260 Log file, useful mostly for debugging
These files should be available for 24 hours.