In the digital music composition, lead may refer to the tone quality that is applied to a signal.
Melody may be described as a phrase or collection of musical notes played in succession.
[1] A lead instrument is usually monophonic (only able to sound one note at a time), such as a horn or voice.
[2] Because the first chair is the leader of their section of instruments, much practice and skill is required to fill this position.
Within these sections, the individual musicians are arranged in terms of their technical prowess.