Original sentence: - and to every aspect of music - tones, intervals, rhythms, harmonies, etc.As a playwright, Steiner wrote four "Mystery Dramas" between 1909 and 1913, including "The Portal of Initiation" and "The Soul's Awakening".Eurythmy is a work in progress; Steiner could only introduce foundational principles that continue to be developed today.The underlying idea is that there are archetypal movements or gestures that correspond to every aspect of speech - the sounds, or phonemes, the rhythms, the grammatical function, and so on - to every soul quality - laughing, despair, intimacy, etc
Edited sentence: As Playwright, he wrote four "Mystery Dramas" between 1909 and 1913, including "The Portal of Initiation" and "The Soul's Awakening".It is interesting to note, however, that the "designs" for Eurythmy were never fully completed.Whereas now Eurythmists only use their arms to create different "sounds" (with the lower half of the body used for walking the rhythm) Steiner wanted the legs to create "sounds" too- unfortunately he died before he could introduce the idea