“We also composed using what we called vowel movement - very important for songwriters. The sounds that work. Many times you don't know what the word is, but you know the word has got to contain this vowel, this sound. You can write something that'll look really good on paper, but it doesn't contain the right sound. You start to build the consonants around the vowels. There's a place to go ooh and there's a place to go daah. And if you get it wrong, it sounds like crap. It's not necessarily that it rhymes with anything at the moment, and you've got to look for the rhyming word too, but you know there's a particular vowel involved.”