This warming up is all about coordination. Harmonics are great for improving support and sound. The key clicks have different rhythms in the left hand and right hand. Therefore fantastic as a coordination exercise. Same goes for the singing and playing part.
Flute Colors arrangements
Sheet music with extended techniques for flute
Here you can buy and download sheet music of arrangements with extended techniques for flute.
Variations on well know flute exercises, traditional songs, but also modern pop songs. From Drouet and Bach to Justin Bieber and Bruno Mars. Have fun with extended techniques for flute!