B Flat Tuning on 7-String Guitar: Notes, Chords and How to Use It

B Flat tuning on a seven-string guitar is one of the simplest alternate tunings you can learn: every string drops by exactly one fret's worth of pitch. Nothing about your chord shapes, scale patterns or fingerings changes. What changes is the sound. The guitar gets a little darker, a little looser and a little heavier, and the strings feel easier under your fingers. If you play heavier rock or metal, or you simply want your seven-string to rumble a bit more, this is a great first step away from standard tuning.

What Changes: The Notes of B Flat Tuning

Before we tune, two quick terms. A half step is the smallest distance in Western music, and on guitar it's the distance of one fret. A sharp (#) means a note raised by a half step, so A# sits one fret above A.

In standard seven-string tuning, your open strings from the thickest (string 7, nearest your chin) to the thinnest (string 1) are B, E, A, D, G, B, E. In B Flat tuning, each one comes down a half step:

• String 7: B down to A#
• String 6: E down to D#
• String 5: A down to G#
• String 4: D down to C#
• String 3: G down to F#
• String 2: B down to A#
• String 1: E down to D#

So the full tuning, low to high, is A#, D#, G#, C#, F#, A#, D#. The tuning takes its name from that lowest string: A# is the same pitch some players call Bb.

How to Tune Into It, Step by Step

The easiest method is a clip-on or app tuner. Work from the thickest string to the thinnest, and tune each one down until the tuner reads the new note.

1. Loosen string 7 from B until it reads A#.
2. Loosen string 6 from E to D#.
3. Loosen string 5 from A to G#.
4. Loosen string 4 from D to C#.
5. Loosen string 3 from G to F#.
6. Loosen string 2 from B to A#.
7. Loosen string 1 from E to D#.

A useful habit: when tuning down, go slightly below the target, then bring the string back up to it. Tuning up into a note helps the string hold its pitch.

Checking by ear

Once the low string is right, you can check the rest the same way you would in standard tuning. Press string 7 at the 5th fret and it should match open string 6 (D#). Fret 5 on string 6 matches open string 5 (G#), fret 5 on string 5 matches open string 4 (C#), and fret 5 on string 4 matches open string 3 (F#). The one exception is string 3: press it at the 4th fret to match open string 2 (A#). Then back to the 5th fret on string 2 to match open string 1 (D#). Listen for the two notes blending into one steady tone with no wobble.

Why Players Use It

Because every string drops by the same amount, the relationship between strings stays exactly as it was. Most neighbouring strings are a perfect 4th apart (five frets), with one major 3rd (four frets) between F# and A#, just like the G-to-B gap in standard tuning. That's why all your shapes still work.

So why bother? A few reasons:

• A heavier sound. Lower notes feel weightier. Riffs on that A# seventh string have more growl, which is why down-tuning is so common in heavy rock and metal.
• Slacker strings. Less tension means bends come a little easier and the strings feel softer under your fingertips.
• Singing range. Dropping everything a half step can put songs into a more comfortable key for a singer without relearning a single shape.
• Playing along with records. Plenty of guitar-driven music is recorded tuned down a half step, so this tuning lets you play along with the shapes you already know.

Strumming the Open Strings

Strum all seven open strings and you won't hear a neat major or minor chord. Because the strings are mostly stacked in 4ths, the sound is open, wide and a bit unresolved, like a question hanging in the air. It's the same flavour you get strumming open strings in standard tuning, just one fret lower and a touch darker.

The real magic for riffing is in single open strings used as drones, meaning a note that rings on underneath while you move other notes around it. Chug the open A# on string 7, then play short melodies on strings 6 and 5 between the chugs. The low open string acts as an anchor that everything else pushes against.

How Chord and Scale Shapes Shift

Here's the good news: every shape you know keeps its fingering. Only the note names move, and they all move down a half step.

• A power chord rooted on open string 7 is now A#5 instead of B5.
• The open E minor shape you know now sounds as D# minor.
• A scale pattern starting at the 5th fret now starts on a note one fret lower than it used to.

A simple rule: to find the note at any fret, work out what it would be in standard tuning, then go down a half step. If you want to play in a specific key, move your usual shape up one fret to land back where you were in standard. On an interactive fretboard, switch to B Flat and watch every note label slide over by one step while the shapes stay put.

A First Thing to Try

Play open string 7 (A#) as a steady, palm-muted chug: lay the side of your picking hand lightly on the strings near the bridge so they thud rather than ring. Count four chugs, then play a power chord at the 1st fret, then back to the open string. Repeat slowly until it feels locked in, and listen to how much deeper that low string sounds than you're used to. Once it's comfortable, try moving that power chord to frets 3 and 5, and you've written your first B Flat riff.

More on the instrument itself: the 7-String Guitar guide.