Musical Composition and Interval Proof is a book that allows composers of music both idea and concept about musical composition and analysis. While using insight of composers such as Arnold Schoenberg, Milton Babbitt, and J.S. Bach, with examples of the International Languages of music and number, composers of music will find a style of music that basic music theory is used with to form theory and proof of intervals and chords. This treatise is for composers with advanced knowledge of Basic Music Theory. Index Introduction..................................................v. - viii. 1. Tetra Chord Structuring: Theory and Application............................9 - 17 2. Intervals and Interval Rationales.............18 - 30 3. The Tritone and the Leading Tone...........31 - 33 4. Twelve-Tone and Tonality........................34 - 37 5. Tonal and Atonal Music: Proof of J.S. Bach Inventionen 1, 2, and 8.............................38 - 59 Index............................................................60