Violin Online: Key Signatures
What do flats, sharps and key signatures mean?

Sharps, Flats & Naturals

Symbol Example Definition
Sharp
sharp symbol
sharp before a note A sharp set before a note raises the pitch of the note a half-step, and remains in effect for the rest of the measure.
Flat
flat symbol
flat before a note A flat set before a note lowers the pitch of the note a half-step, and remains in effect for the rest of the measure.
Natural
natural symbol
natural before a note A natural set before a note restores the natural pitch of a note, and is often used after a flat or sharp.
Enharmonic
Notes
enharmonic note example Enharmonic notes are two notes that sound the same, but are spelled differently, such as A# and Bb.

Key Signatures

major and minor key signatures with sharps
major and minor key signatures with flats

There are 15 Major & Minor Key Signatures. As illustrated above, each major key signature has a corresponding minor key signature, for example both C Major and a minor do not have any sharps or flats. Keys are used to organize a piece of music. For example, music written in the key of C centers around the tone of C, and uses notes from the C scale, with no sharps or flats.

Circle of Fifths

circle of fifths key signature chart

A circle of fifths is an arrangement of keys by ascending fifths. It displays how many sharps or flats are in each key. Major keys are noted in capital letters and are found on the outer part of the circle, such as C and G. Minor keys are in lower case letters on the inner part of the circle, such as a and e.

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