Here it is, placed in the Public Domain for everyone to use freely. Enjoy.
HAPPY MOTHERS DAY TO YOU - by Rev. Bill McGinnis, 2006 - Public Domain
Happy Mothers Day to you,
For everything you do;
From the morning to night,
You make everything right.
Happy Mothers Day to you!
In memory of Christine H. McGinnis
MIDI musi file at http://www.patriot.net/users/bmcgin/mothersday.mid