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Welcome back to Week 2 of this long‑form music series. Last week, you learned the seven natural notes — the basic letters of music. This week, we look at the notes that sit between those letters, created by sharps and flats.

We’re still on Level 1: Notes, but now we’re learning how notes shift left and right.

Sharps & Flats

Accidentals use two symbols: # (sharp) and b (flat).

And the simplest way to understand them is still the same:

# means go to the RIGHT b means go to the LEFT

Sharps and flats are just names for the notes immediately to the right or left of a natural note.

Sharps: Notes to the Right

A sharp raises a note.

C# means “the note just to the right of C.” F# means “the note just to the right of F.”

One easy way to picture this:

If C = 1 and D = 2, then C# is like C and a half — C.5 or 1.5 on a simple number line.

It’s the halfway step between C and D.

Flats: Notes to the Left

A flat lowers a note.

Db means “the note just to the left of D.” Gb means “the note just to the left of G.”

Using the same number idea:

If D = 2, then Db is like D minus a half — 1.5 again.

This is why C# and Db are actually the same physical note.

A Quick Note for Piano Players

When we say “the note to the right” or “the note to the left,” we are talking direction, not color.

Start on an A. The note to the left of A happens to be black — but that doesn’t change anything.

Left is left. Right is right. Color doesn’t matter.

We are only talking about movement.

One Note, Two Names

The note between C and D can be called:

• C# (because it’s to the right of C)
• Db (because it’s to the left of D)

Same sound. Same key. Two names.

There are reasons musicians choose one name or the other — but that comes later.

For now, all you need is:

# = right b = left

What’s Coming Next

Next week, we’ll learn basic intervals — the distances between notes. Intervals are the final piece of Level 1 before we move upward in the pyramid.

For now, just remember:

Sharps move right. Flats move left. And the notes between notes are simple once you see them as steps.