Minor scale based on the accidentals of the "natural" minor scale, not on those of the harmonic or melodic minor scales. For example, a piece in E minor will have one sharp in its key signature because the E natural minor scale has one sharp (F). Major and minor keys that share the same key signature are "relative" to each other. For instance, F major is the relative major of D minor since both have key signatures with one flat. Since the natural minor scale is built on the 6th degree of the major scale, the tonic of the relative minor is
Flat (music) }</score> Although very uncommon, a triple flat () can sometimes be found. It lowers a note three semitones. Flat (music) In music, flat or bemolle (Italian: "soft B") means "lower in pitch". More specifically, in musical notation, flat means "lower in pitch by one semitone (half step)". Flat is the opposite of sharp, which is a raising of pitch. In music notation, the flat symbol, , derived from a stylised lowercase ""b"", lowers a note by a half step (semitone). For instance, the music below has a key signature with three flats (indicating either E major or C minor) and