Schlaug found that his stroke victims who were aphasic, could not form sentences of three- or four-word sentences, but they could still sing the lyrics to a song, whether it was "Happy Birthday To You" or their favorite song by the Eagles or the Rolling Stones.
Schlaug descobriu que as vítimas de AVC que eram afásicas não conseguiam formar frases de três ou quatro palavras, todavia podiam cantar a letra de uma canção, fosse ela “Parabéns pra Você” ou sua música favorita das bandas Eagles ou Rolling Stones.