Tempo is the speed at which a passage of music is or should be played. The rate or speed of motion or activity; pace. The tempo of a piece will typically be written at the start of a piece of music, and in modern Western music is usually indicated in beats per minute (BPM).  In Classical Music there are descriptions for this measurement (Adagio, Vivace, Allegro, etc.). God created light and separated it from something that pre-existed “darkness”. God did a separation between light and darkness and he named these distinct thing. This happened in a period of time. The Bible says that God called this period “The first day”. One of the interesting things about “tempo” related to syl/sec is that Moses had a different tempo than everybody else.