The Lab

Numbers on the Neck

Keys, the major scale on bass, and Nashville number charts for church bass players. Learn one scale shape, learn what the numbers point to, and you can play any chart in any key the worship leader calls. Pick a key and everything on this page follows it.
Key
common church keys
Start here

The whole idea in four cards

1 = the key

Numbers instead of letters

In the key of G, G is 1. Count up the scale from there: the 4th note is 4, the 5th note is 5. A chart that says 1 4 5 works in every key, so when the key changes for a singer, the chart stays the same.

W W H W W W H

One shape plays every key

The major scale is whole steps (2 frets) and half steps (1 fret) in that order. On bass, that makes one fingering you slide up and down the neck. Put your middle finger on the root. Frets: E string 2, 4. A string 1, 2, 4. D string 1, 3, 4.

2m 3m 6m

Which chords are minor

1, 4, and 5 are major. 2, 3, and 6 are minor, written 6m or 6-. The 7 chord almost never shows up. Playing roots, you play the same note either way: 6m in G is E.

1/3

The slash is for you

A slash chord like 1/3 means the band plays the 1 chord and the bass plays the 3 note. The bottom number is your note. In G, 1/3 is G/B, so you play B.

The keys

What a key is, and where to find it

A key is the set of seven notes a song is built from. It's named after its home note, the 1. Every key uses each letter A through G once. What changes from key to key is which letters get a sharp (♯) or a flat (♭).

Find the 1 on your bass

Bass players find roots on the E and A strings. The notes in the key of G have dots, and the gold dot is the 1. The faint letters are notes that aren't in this key. Tap a dot to hear it.

Learn these landmarks first. They sit on the dots of the neck, and from them you can find any note one or two frets away.

E string 3 = G · 5 = A · 7 = B · 8 = C A string 2 = B · 3 = C · 5 = D · 7 = E Rule One fret up = sharp. One fret down = flat.

All twelve keys

Tap a key to switch the page to it. Going down the sharp keys, each one adds one more sharp. Going down the flat keys, each one adds one more flat. Blue notes are the sharps and flats.

KeySharps or flatsNotes 1 to 71 on E string1 on A string

What key is this song in?

Type the chords from a regular chord chart. The page finds the key that fits them best and turns them into numbers. Songs usually start or end on the 1.

Letters with spaces between, like G D/F# Em C. Minor chords take an m.
The fretboard

The G major scale

Gold dots are the root (1). Tap any dot to hear it.

The seven numbers in G

This is the cheat sheet. The note under each number is what you play when the chart says that number. Tap one to hear it.

Chart reader

Type a number chart, read it in any key

Each number is one bar. Paste a chart from rehearsal or edit the sample, then change the key up top.

One section per line, like Verse: 1 5 6m 4. Two chords in one bar: 4_5. Hold: <1>. Push: ^4. Key change on its own line: Key change: up 2 (frets).

Import from SongSelect or Planning Center

Paste a ChordPro chart (the kind with chords in square brackets, like [G]Amazing [D/F#]grace) or a chart with chords on their own lines above the words. The page keeps the section names, reads the key, and turns the chords into numbers. The sample below uses made-up lyrics.

Play along

Go beyond roots, then play it with a band

Roots on beat one are always right. Once they feel easy, pick a pattern below. The page writes it out as bass tab in your key and plays it with you.

1. Pick what to play over

2. Pick a bass pattern


      

How to read tab: each line is a string, with G on top and E on the bottom. The number is the fret, and 0 is the open string. Each bar is four beats. Showing the first four bars in G.

3. Play

Drill

Quiz yourself

Get ten in a row in one key, then move to the next.

Streak 0 · 0 of 0 right
Ear training

Hear the numbers

In church you often have to follow the band without a chart. This drill plays the key (1, 4, 5, 1), then one more chord. Name its number. Start with 1, 4, and 5, because most songs live there. The key changes every question, so you learn to hear the distance from 1, not the note itself.

Press "Play a question" and listen.
Your progress

What you've practiced

Saved in this browser only. A key counts as solid once you get ten quiz answers in a row in that key. Tap a key to switch to it.

Ear training

Practice plan

Ten minutes a day

  1. Learn the landmarks: G, A, B at frets 3, 5, 7 on the E string, and C, D, E at frets 3, 5, 7 on the A string. Say each note as you play it.
  2. Pick G. Play the one-octave shape up and down slowly while saying the numbers out loud.
  3. Play the roots of 1 4 5 1, four beats each. Then 1 5 6m 4, the most common worship progression.
  4. Add walk-ups. In the bar before a 4 chord, play 1, 2, 3 on the last three beats so you land on 4.
  5. Move to D, A, E, and C. Then the flat keys F, B♭, and E♭. The shape doesn't change, only where it starts.
  6. Run the quiz until you get ten in a row in that key.
  7. Take Sunday's chord chart and write the numbers above the letters.
Reference

Chart symbols

SymbolMeansIn G