I am updating links on my Comprehensive Arts page.
ERIC is a good place to start for finding Music
lessons. Here is one for Kindergarten that YOU can do
(or get the music teacher on board too).
ENJOY - Make your units "comprehensive" and see the
difference it makes. Work may not improve - you will
get less art made - but the kids will REMEMBER what
they did and why. Start with kindergarten and the
primary grades (as these kind of lessons take a lot of
time to prepare).