pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-69250-MILLER.ps) >>/Users/jc/w/tmp/Tune-69250-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/Miller/MILLER(12-4-2016).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_69250.log 139782 Log file, useful mostly for debugging
Form_69250.log 872 Log file, useful mostly for debugging
Tune-69250-MILLER.abc 705 ABC music file with the extracted tune(s)
Tune-69250-MILLER.ps 36649 PostScript
Tune-69250-MILLER.txt 705 Plain-text file with the extracted tune(s)
Tune-69250-get.log 4405 Log file, useful mostly for debugging
These files should be available for 24 hours.