A practical 36-page Circle of Fifths guide for piano students covering key signatures, major and minor scales, chords, progressions and transposition. This step-by-step music theory resource helps students understand how the Circle of Fifths can be used in real musical situations instead of simply memorising the diagram. The guide is suitable for piano students, independent learners and music theory study. Topics covered include: How the Circle of Fifths is organised Sharp and flat key signatures Relative major and minor keys Major scales Natural and harmonic minor Diatonic chords in major keys Roman numeral harmony Common chord progressions Transposing chord progressions into new keys Closely related keys Basic modulation Practical piano exercises Review questions and worksheets Answer section Resource format: 36-page PDF A4 format English language Printable or suitable for digital use Designed as a practical reference and study guide This resource can be used alongside piano lessons, music theory study, composition practice or independent learning. The focus is on helping learners connect keys, scales and harmony so that the Circle of Fifths becomes a useful musical tool rather than an abstract chart.