'All-In-One: Grades 1 - 3' is a concise, yet fully comprehensive, step-by-step explanation of music theory from beginner to grade 3 for both Associated Board (ABRSM) and Trinity College London students. This book coincides with the publication of the THIRD edition of 'All-In-One to Grade 5' (beginner to grade 5) on which it is based, containing much of the same material as the lower grades with a few extra exercises in areas where students need most practice.