The B flat major scale on piano is an interesting one to play mainly due to the unique fingering you need to use to play it. It doesn't have many black notes - only 2 - but their locations mean we need to move on from basic scale fingering and use fingering or finger patterns just for this scale.
Here you'll learn:
The B flat major scale starts and ends on Bb. It has 2 black notes in it's key signature - Bb and Eb.
The key of Bb has Bb and Eb.
The notes of the Bb major scale are: Bb C D Eb F G A Bb
The fingering for the B flat major scale on piano is unique for both the right hand and left hand. So each one should be learned on it's own in the beginning before trying to play hands together. (Get that muscle memory down!)
One of the different things is that right hand will start on finger 2 and then cross 1 under right away. Left hand will start on finger 3 but end on finger 2. So it's really a different one.
Right hand fingering for Bb Major Scale:
Right hand fingering: 2 1 2 3 1 2 3 4
The left hand is also unique and has it's own finger patterns.
Left hand fingering for B flat major scale on piano:
Left hand: 3 2 1 4 3 2 1 2
When putting this scale hands together, you really need to be able to play them hands separately without stopping to think about your fingering and notes first. Once you feel very comfortable and can play it without really thinking about it, you can start putting it together.
Here are some tips for playing the B flat major scale hands together:
The B flat major scale is not a beginner scale so take that into account when learning it. It's like everything else, it takes time and practice to learn.
Fingering for all scales - especially more unique ones like Bb major, can be found in the Complete Book of Scales, Chords and Arpeggios here on Amazon (this is an affiliate link that will earn a tiny commission).
This is a handy resource when learning scales (and also arpeggios).
If you're playing this scale going up and back down, use the following fingering to help you.
Here are pictures / diagrams of the Bb major scale on piano going both up and back down for the treble clef and right hand and the bass clef and left hand.
Now that you know the B flat major scale, you also know the key signature of B flat major. If the scale as 2 flats, the key does.
The key of B flat has 2 flats: Bb and Eb.
(The order of the first 4 flats spells the word BEAD, so we have the first 2 letters of the word here.)
Another thing we can learn from this scale is the Bb major chord - which is written as just Bb.
A major chord is built off of the first, third and fifth notes of the scale.
When you look at the scale you can see:
1st note = Bb
3rd note = D
5th note = F
Those 3 notes make the Bb chord. Bb = Bb D F
You can also see here why a Bb suspended chord has a flat. The suspended chord formula is the 1st, 4th and 5th notes of a major scale. So that means Bbsus (B flat suspended chord) would have Bb, Eb and F as it's notes.
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If you've never played the B flat major scale on piano before, you can give it a try this week!
I'd recommend playing it hands separately and going up and back down.
You can also play the B flat major chord at the end of your scale.
If you need more help with fingering for scale, I recommend the book: Complete Book of Scales, Chords and Arpeggios here on Amazon (this is an affiliate link).
You can also find more scale on the Major Scales Page.