Do key signatures matter?

Are key signatures important?

The key signature reminds the performer which sharps or flats are in the scale (or key) of the piece and prevents the composer or arranger from writing every sharp or flat from the scale every time it occurs. There are 15 major key signatures.

Why does the key signature matter?

Key signatures mostly matter if you have to accomodate singers and instruments with a limited range. They have no intrinsic meaning. That said, leaving your comfort zone is generally considered a good idea. If you stick to one key, you may stick to what feels comfortable in that key.

What difference does a key signature make?

A key signature is a visual symbol, printed on a musical staff, that indicates what key a section of music is written in. Key signatures are represented by using accidentals—better known as sharps and flats. The number of sharps or flats indicated in the key signature will tell the player what key the music is in.

Does it matter which key a song is in?

In other words, it's quite possible to generate interesting chord progressions even if you don't know the key of your song. Your ears will tell you if the progressions are working. So that's one answer: It doesn't matter if you don't know the key of your song; you can still come up with progressions that sound great.