Understanding the key system in music is fundamental to music mastery. This detailed lesson plan guides students through a system of four steps to memorize each of the 15 major keys in the Western musical system in a straight forward and practical manner, and to gain greater understanding of functional harmony. Multiple charts and tables illustrate the elements of a key and how they relate to one another, including chords, degrees and the use of solfegge syllables. Includes printable Key A Day worksheet, audio reference tracks, and complete table of key spellings. This is the ONLY tool you need to master the key system in music once and for all! Also great for teachers to use as an all-in-one package with students.