Оригінал: Sevcik, Otakar. Part XIII. Change of Position, Transition-Tone. School of Intonation on an Harmonic Basis for Violin. Op.11.
Переклад: Sevcik, Отакар. Sevcik, Отакар. Violin solo. Part I. General Introduction. Part IIa. The Semitone and Tritone. 12 Основні Ваги.