The workbook is helpful for everyone who works with the nature of sound, for eurythmists in all professions, and for those interested in eurythmy. Suggestions for studying the eurythmic sound qualities based on Rudolf Steiner's diverse characterizations of sounds, with precise references, are compiled in a clear structure. Between the sound appearance and the sound as a being stands the eurythmic sound with its artistic means, as illustrated in Rudolf Steiner's eurythmic figures. In accordance with the stages of human development, an attempt has been made to capture a sound being in seven stages. The consonants reveal themselves from the essence to the realm of work, while the vowels begin to reveal themselves in the spiritual and develop the ensouled nature of human speech. The feeling soul must today find its way in the vowels towards the spiritual.