pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-96245-pvs_american.ps) >>/Users/jc/w/tmp/Tune-96245-get.log 2>&1" returned status 256
http://www.banjolin.co.uk/tunes/pvs_american.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
Form_96245.log 763 Log file, useful mostly for debugging
Tune-96245-get.log 4190 Log file, useful mostly for debugging
Tune-96245-pvs_american.abc 343 ABC music file with the extracted tune(s)
Tune-96245-pvs_american.ps 36028 PostScript
Tune-96245-pvs_american.txt 343 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.