Vim with LP syntax coloring on Mac OSX

[Jonathan Kulp]

I'm having trouble getting vim to do Lilypond syntax coloring on OSX.  I 
have it all working fine on my Linux machines but I'm doing something 
wrong on the Macs.  I added the "if exists..." lines according to 
Application Usage to the filetype.vim file here:

/usr/share/vim/vim62/filetype.vim

I also put this path in my ~/.vimrc file:

set 
runtimepath+=/Applications/LilyPond.app/Contents/Resources/share/lilypond/current/vim

Clearly something is wrong because I'm not getting syntax coloring. 
Could someone who uses Vim on Mac OSX help me figure out the correct 
setup?  Many thanks in advance,

Jon
--
Jonathan Kulp
http://www.jonathankulp.com