In 17th-century philosophy, the movement of the stars creates a perfect Music of the Spheres, which is reflected in the harmonious nature of the Human body, and imitated in actual music, played or sung.
This is a hierarchical connection, with heaven at the highest level and performance at the lowest level: humans are in-between.
“Ex motu Armonia” – “The movement of the heavens creates Harmony” Detail from the frontispiece of Agazzari’s “Del sonare sopra ‘l basso” (1607).
The movement of the stars also defines Time, which is measured in musical notation, perceived as the feeling of tempo and the quality of movement, indicated in music-making by the Tactus-hand. [All of these were far more precise than period clocks.]
This connection is not hierarchical but one of identity: astronomical Time is the same as musical Measure, Tempo and the Tactus-Beat. (Zacconi 1596).
MOVEMENT & SOUL
Baroque Time is not Newton’s Absolute Time, “like an ever-rolling stream”, it is Aristotle’s “time as a number of motion”. In Aristotle’s Physics, this movement (and therefore, Time itself) can only be perceived by a Soul.
When Baroque writers call Time “the Soul of Music”, they mean that Time gives the dry numbers of musical-notation meaning in the real world, transforming them into living sound, what we would call ‘live Music’.
LIFE, MOVEMENT & PASSIONS
Music seeks to ‘move the Passions’, to sway emotions, which are ‘the affections of the Soul’, Affekt (German), affetti (Italian). The effects of soul-musical emotions are felt in the mind and in the body.
17th-century Pneuma, mystic breath, is the divine energy giving the breath of life (from heaven), and also the networked energy connecting mind, body and soul (human, rather like oriental Qi), and also the artistic Energia that communicates between musician and listener (in performance). This is the same hierarchy as in Music.
CAUSE & AFFEKT
Perfect heavenly Movement creates Time, which gives life to Music, which moves the Passions. Perfect heavenly Movement also creates Music. The heavens are turned, and the human soul created, by the Divine Hand. All these relations are causal: one creates another.
MIND, BODY & SPIRIT
If you keep this in mind, whilst you move your hand in the embodied time of Tactus, you may feel something of the baroque Spirit of Music, communicating Passions to listeners.
This connection is also causal. It’s not enough to think about it, you also have to beat Tactus, otherwise it won’t happen.