Between thunder and lightning: Svaha
In Charles De Lint's fantasy/cyberpunk/First Nations/Yakuzza epic Svaha, he defines the word as a Native American/First Nations word meaning the space between the time you see the lightning and hear the thunder.
Svaha's dam is the Wild Black Mare, the yin of Earth, of Thunder, of Night.
Her sire is a grey Arabian named Sahabi, a relative of Saraf, my first horse. He is Sky and Day and Lightning.
With less time and money to spend on lessons and showing and travelling, Svaha has mainly been chilling with her buddy, Goliath, my friend's mustang gelding. Her type however, the Arab/mustang cross, is awesome for endurance or competitive trail riding. I usually ride in a Bitless Bridle http://www.bitlessbridle.com/ but have occasionally experimented (especially out of the arena) with adding a short shanked Pelham to the bitless bridle.