[German version] I. Terminology In Greek Antiquity, ῥυθμική,
sc. τέχνη (
sc. téchnē) was, from Aristoxenus  on, the theory of rhythm. The original meaning of ῥυθμός (
rhythmós), long controversial, seems to have been ‘flowing’, ‘a stream’ .
Rhythmós referred to bodily and tonal movements, but also to immobile bodies and statues (Arist. Quint. 31 Meibom).
hythmós is attested in Archil. 67a 7 Diehl, in the context of μουσική (
mousikḗ ; Pl. Leg. 665a: κινήσεως τάξις/
kinḗseōs táxis, ‘order in movement’), in rhetoric (Aristot. Rh. 3,8,1408b-1409a), and as a …