In the context of the chromatic scale, notes are separated by half steps (semitones). To clarify your question, let's break it down:
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Half Step (1/2): This is the smallest interval in the chromatic scale. Each pair of adjacent notes (e.g., C to C#, or E to F) is one half step apart.
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Whole Step (2/2): A whole step consists of two half steps. For example, from C to D is a whole step (C to C# is one half step, and C# to D is the second half step).
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One Whole Step (1): This refers to moving up two half steps, as already described.
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One and a Half Whole Steps: This means moving up three half steps (1.5 whole steps), which can be visualized as:
- One whole step from C to D (C to C# to D), plus another half step from D to D#.
To summarize, the intervals you mentioned correspond to the following number of half steps:
- Half step: 1 half step
- Whole step: 2 half steps
- One whole step: 2 half steps
- One and a half whole steps: 3 half steps (1.5 whole steps)
So, you typically have the following for distances in the chromatic scale:
- Half step = 1 step
- Whole step = 2 steps
- One and a half whole steps = 3 steps
If you have other related questions or need further clarification, feel free to ask!