Sharps increase by a fifth interval as in from F# to C#.Then C# goes to G#. Remember that the flats increase by a fourth interval as in fromBb to Eb. Then you may see a key signature with 4 flats, Bb, Eb, Ab, and Db.It is in the key of Ab.Ī key signature with 5 flats, Bb, Eb, Ab, Db, and Gb has Dbas its key. When you find a key signature with 3 flats, Bb, Eb, and Ab.It is in the key of Eb.įlats increase by a fourth interval as in from Bb to Eb. If you see Bb and Eb, the next to last flat is Bb.The key is Bb. Starting with 2 flats you can find the key it is by looking atthe next to last flat. Then you may see a key signature with 2 flats in it, Bb and Eb.The key of Bb is defined by having two flats in it, Bb and Eb. There are key signatures that have flats.The key of F is defined by having one flat in the key.The one flat is Bb. What if you have Fb? You go down a half step from F to the next note which is E. What if you have Cb? You go down a half step from C to the next note which is B. Remember there are no black notes between the white notesfrom E to F and from B to C. What if you have B#? A half step up from B is C. What if you have E#? A half step up from E is F. This is the Key of G.ĮNHARMONIC NOTES are the same notes reached by going up a half step as in C# or going down a half step as in Db. Then D# goes to A#.įor a description of intervals, go to the Intervals pageon the menu. Sharps in the key signature increase by a fifth interval as in from F# to C#. Look at the last sharp in the key signature and the key will be a half step up from it. The key of B major has five sharps F# C# G# D# A#. The key of E major has four sharps F# C# G# D#. The key of A major has three sharps F# C# G#. You can tell what key the song is in by the number of sharpsfor some keys and by the number of flats for other keys. In any of these keys they may be major keys or minor keys. You can call the five black notesDb Eb Gb Ab Bb There are 12 keys per octave.C D E F G A B seven white notesC# D# F# G# A# five black notes
Some keys are denoted by the number of notes that have sharps.Other keys are denoted by the number of notes with flats. In this piano lesson, you learn to find a key. The key signature can have sharps or flats. At the beginning of each clef is the key signature, or piano key chart.
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