Listening
Imagine that you are floating on the water's surface. While floating, and with your eyes closed, imagine you're listening to the songs of whales below you.
The feeling of weightlessness that floating engenders is similar to that of jumping off an airplane – the moment just before you open your parachute. Imagine falling/floating above the void, while you listen to the whalesongs.
WhaleSongMaking
Whalesong is made up of different phrases organized into themes: higher-pitched cries alternate with low grunts. Listen to some recordings of whale songs. You can try to recreate some of them by using a beverage dispenser and/or a corrugated pipe, to give your voice and breath more resonance.