A Tune a Day for Classical Guitar Book two By Herfurth & Urwin Tab Music Method. A Tune a Day. Classical Guitar. Book 2. By Herfurth & Urwin . Tab Music Method. In compiling this A TUNE A DAY course of tuition, the object has intentionally been not to cover too much ground, but to concentrate on the acquisition of a thorough, musical background and a solid technical foundation when studying the Classical Guitar.