Man and woman fell into sin, disobeying God and putting a distance between us and Him. Adam hid from God (as if he could actually hide from God), but the Lord God called to the man and said to him, "Where are you?"
Orthodox Christian worship is best executed by the instrument for which it was developed - the human voice. Perhaps more to the point is the fact that the Apostles and early churches did not use instruments in worship, and indeed emphasized this "absence" as being significant.
St John could not meet anyone who was destitute without shedding tears, taking their sorrow upon himself. On one occasion, a particular person had been pointed out especially to the Patriarch. This man, in different disguises, had come and received alms three times.