PrintableCharts
THE KEYBOARD

1 / 3 · mockup · music-room

THE KEYBOARD

three octaves · every key and its note on the staff

Built as a memo rather than a table: the thing worth hanging it up for reads across the room, with the full reference in smaller type below it.

Three sizes in one archive — from a sheet on the fridge to a poster on the wall.

Standard$1.50

Payment and email are handled by Paddle. The download link arrives by email — no account, no password.

Formats
A4 · A3 · A2
What you get
Print-ready PDFs, one per size, with every letterform converted to outlines — nothing to install, nothing to shift.
Subject
music · beginners · reference · music room

Middle C is marked. Most sheet music counts octaves from that key.

WHY THE BLACK KEYS ARE GROUPED

If the black keys were evenly spaced you could never find a note by touch — every octave would look identical.

Groups of two and three break the keyboard into recognisable landmarks. C sits left of the pair, F left of the triple.

So a pianist never counts keys from the end: they read the pattern the way you read a word, not letter by letter.

On the sheet

  • Middle C is marked. Most sheet music counts octaves from that key.
  • Colour carries meaning, but meaning never rests on colour alone — the sheet reads in black and white.
  • Nothing about how it was made: the sheet carries only what the reader needs.

Printing

  • Three sizes in the archive: A4 — 210×297 mm, A3 — 297×420 mm, A2 — 420×594 mm.
  • All text is converted to outlines. No fonts to install, and nothing shifts on another machine.
  • White background and sparing fills — it prints on a home printer without draining the cartridge.
  • Margins of at least 10 mm: a home printer cannot print to the edge.
  • No stroke thinner than 0.3 mm, so nothing disappears in print.

Why the numbers can be trusted. Every countable number here is computed from data rather than typed in, and the sheet must pass 7 independent checks before it is allowed to build — how many items there are, the order they come in, and the claim in the highlighted box itself. If one fails, there is no file.

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