Here is an example of the type of the topic based plans I used when I was a classroom music teacher. I always delivered topic based lessons tying in with the current class topics the children were studying as this made the lessons more relevant and fun. It was a lot of work sourcing material and constantly creating new ideas but it worked and the work the children produced quite often took my breath away. I hope you find these plans useful.
The example plan you can view here is for the topic 'All About Me' and was designed for E.Y.F.S/K.S.1 children.