![]() It is of paramount importance for the practicing musician to memorize these keys and to be able to recall them instantly. The following tables illustrate each key signature, along with a listing of their corresponding keys. For example, B-flat major and G minor have the same key signature: the relative minor of the key of B-flat major is G minor, while B-flat major is the relative major of G minor. Sheet music is available for Piano, Guitar 1, Guitar 2 and 2 others with 5 scorings and 2 notations. Each is termed the "relative" major or minor, respectively, in relation to the other. However, in A minor, which shares the same key signature (no sharps or flats), the most imortant note is A. Browse our 3 arrangements of NOCTURNE IN B-FLAT MINOR. All other things being equal, though, each key signature can represent one of two musical keys: one major, and one minor. We need more than the key signature to determine the key of a passage, though - that must be decided on the basis of contextual features to be explained elsewhere in the School of Music. Since a the presence of a "key" in music is contingent on a certain pattern of accidentals, the key signature gives a partial indication of the key of a given passage of music. In traditional notation, this influence of the new accidental applies for the duration of the measure before the key signature resumes its "dominion", or until canceled by a subsequent new accidental. (For instance, in our example, if the key signature contains F-sharp but a written note F appears with a natural sign written in front of it, F-natural should be played). An accidental immediately preceding the written note always takes precedence. Often, however, an accidental contradicting the direction of the key signature will appear immediately before the written note. For example, if the key signature consists of only F-sharp, each written note F in the piece should be played as F-sharp, even though no sharp immediately precedes the written note. The B flat minor 7 chord (just like all minor 7 chords) contains the following intervals (from the root note): minor 3rd, Major 3rd, minor 3rd, Major 2nd (back to the root note). ![]() The Bbm7 chord is produced by playing the 1st (root), flat 3rd, 5th and flat 7th of the B flat Major scale. (In this way it differs from a time signature, which need be written only once). The B flat minor 7 chord contains the notes Bb, Db, F and Ab. The key signature determines the pattern of accidentals - sharps and flats - to be played, and reappears at the beginning of each staff. A key signature serves as a guide for the performer of a piece of music.
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