A practical instructional book for mastering tension chords, which are the most challenging but ultimately desirable techniques for guitarists. Tension is the magical spice that adds a colorful touch to chords. Selecting the right tension for the right place, manipulating the harmonies, and controlling the overall color of a song... this is where a guitarist's musical sense truly shines. This book was designed to help you systematically master the art of using tension. Taking each standard tension (degree) one by one, this book refines your sense of harmony from various perspectives, ranging from basic approaches to practical know-how incorporating a variety of ideas. This tension chord mastery manual will be immediately useful for beginners, intermediate, and advanced players alike, and for musicians of all genres, including pop, rock, fusion, and jazz! Supported audio sources can be downloaded and streamed. Contents [Part 1] A practical guide to mastering different tension levels ◆Chapter 1: Natural Tension Section 1 [9th]: Stylish with a smart, sophisticated feel Section 2 [11th]: Perfect match with minor chords! Section 3 [13th]: Mellowly fragrant must-have spices Section 4 [6th & 9th]: Unique and distinctive chords that highlight the character. ◆Chapter 2: Altered Tension Section 1: [♭9th] Diminished chord! Section 2 [Altered Tensions = ♭9th, ♯9th, ♭13th]: A group of tensions that create a sense of slope. Section 3 [#11th] A fuzzy, floating tension [Part 2] Systematically learning the mechanism of tension ◆ Chapter 1: Basic knowledge and the core of voicing Section 1: What is tension? Section 2: Tension Selection Section 3: Practical Ideas for Creating Forms and Voicings ◆Chapter 2: Reading Chord Progressions ⇒ Identifying Tensions Section 1: Analysis of Chord Progressions and Analytical Notation Section 2: Deriving the Tension Used from the Available Note Scale