+The **Half Step** is the smallest musical [interval](/wiki/interval) in Western tonal music, often called a semitone. It is a fundamental building block, shaping melodies and harmonies from a [Chromatic Scale](/wiki/chromatic_scale) to expressive lead lines.
+## See also
+- [Whole Step](/wiki/whole_step)
+- [Semitone](/wiki/semitone)
+- [Scale](/wiki/scale)
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