The first three chords on the staff below are not strictly part of the cadence, but they are useful to set the expectation that this phrase is definitely in the key of B-flat major. The two chords above are shown as the last two chords on the treble clef below. This is note 8 of the piano diagram in the above step, and as note 4 on the piano diagram below. As you can see from this link, the tonic chord notes are currently Bb, D, and F.Īt the moment, the highest note of the I chord is F, so to make this cadence perfect, we will add the octave of the tonic note into the chord. However, perfect cadences also need to have the tonic as the highest note of the tonic chord (I) - Bb major chord. To keep things simple, we will use chord V from now on.įor an authentic cadence to be considered perfect, both of these chords need to be in root position, so on that count the links above are fine - both chords are in root position. Or if chord V7 is used in place of chord V, we move from the Bb major seventh chord #V 7 - F dom 7 chord to the Bb major chord. So looking up the triad chords for these scale degrees from the table above, we are going from the Bb major triad chord #V - F major chord, to Bb major triad chord #I - Bb major chord. StructureĪn authentic cadence moves from the dominant (V or V7), to the tonic (I) scale degree. This step shows the B-flat major perfect authentic cadence on the piano and treble clef. To understand what the roman numerals mean, please look at Bb major triad chords or Bb major 7th chords.Īccording to the cadence type, some of these chords, scale degrees and roman numerals will be used in later steps to define this cadence.

B-flat major scale Note no.įor each note in the scale (2nd column), there is a triad chord whose root / first note is that scale note (4th column), and the same applies to 7th chords (5th column). B-flat major scale notesīelow is a piano diagram showing the Bb major scale notes.įor details on all the chords in this scale, have a look at Bb major triad chords, and Bb major 7th chords, but a summary table of all chord names and their scale degrees is shown below. This step shows the B-flat major scale notes and the triad chords in that scale.īefore describing the details of the perfect authentic cadence in the key of B-flat major, first it would be to useful to identify the scale notes, degrees and chords that could be used in this key.

B flat major triad