pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-91158-Johnson.ps) >>/Users/jc/w/tmp/Tune-91158-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/Johnson/Johnson Vol1(Jan17).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-91158-Johnson.abc 665 ABC music file with the extracted tune(s)
Tune-91158-Johnson.ps 35872 PostScript
Tune-91158-Johnson.txt 665 Plain-text file with the extracted tune(s)
Tune-91158-get.log 47972 Log file, useful mostly for debugging
These files should be available for 24 hours.