Spot the mistakes
Chorale 1 in B flat major
A 16-bar harmonisation in Bb major with 14 mistakes in it. Find them all.
Read first: Voice leading, Choosing chords and a bass line, Passing notes and suspensions. Keep the rules sheet open.
The chorale
The melody is correct. The mistakes are in the alto, tenor and bass. Press Play to hear it. Select a beat in the score, then choose what is wrong there. With a keyboard, tab into the score and use the left and right arrow keys.
Read the notes as a table
| Bar'beat | Soprano | Alto | Tenor | Bass |
|---|---|---|---|---|
| 1'1 | Bb4 | F4 | D4 | Bb2 |
| 1'2 | C5 | F4 | C4 | A2 |
| 1'3 | D5 | F4 | Bb3 | D3 |
| 1'4 | Bb4 | G4 | D4 | G3 |
| 2'1 | Eb5 | Bb4 | G4 | Eb3 |
| 2'2 | C5 | Bb4 then A4 | F4 | F3 |
| 2'3 (pause) | Bb4 | F4 | D4 | Bb2 |
| 2'4 | held | held | held | held |
| 3'1 | D5 | D4 | Bb3 | Bb2 |
| 3'2 | D5 | G4 | Bb3 | G3 |
| 3'3 | Eb5 | G4 | Bb3 | Eb3 |
| 3'4 | F5 | F4 | Bb3 | D3 |
| 4'1 | D5 | G4 | Bb3 | D3 |
| 4'2 | E5 | G4 | C4 | C3 |
| 4'3 (pause) | F5 | A4 | C4 | F3 |
| 4'4 | held | held | held | held |
| 5'1 | F5 | Bb4 | Bb3 | D3 |
| 5'2 | D5 | Bb4 | Bb3 | D3 |
| 5'3 | Eb5 | G4 | C4 | Eb3 |
| 5'4 | C5 | F4 | A3 | F3 |
| 6'1 | Bb4 | D4 | Bb3 | G3 |
| 6'2 | Bb4 | F4 then Eb4 | C4 | C3 |
| 6'3 (pause) | A4 | F4 | C4 | F3 |
| 6'4 | held | held | held | held |
| 7'1 | Bb4 | F4 | D4 | Bb2 |
| 7'2 | G4 | Eb4 | C4 | C3 |
| 7'3 | A4 | F4 | C4 | D3 |
| 7'4 | Bb4 | D4 | Bb3 | G3 |
| 8'1 | C5 | C4 | G3 | Eb3 |
| 8'2 | A4 | F4 | C4 | F3 |
| 8'3 (pause) | Bb4 | F4 | D4 | Bb2 |
| 8'4 | held | held | held | held |
| 9'1 | D5 | Bb3 | Bb3 | Bb2 |
| 9'2 | C5 | Eb4 | A3 | C3 |
| 9'3 | Bb4 | F4 | Bb3 | D3 |
| 9'4 | A4 | F4 | C4 | F3 |
| 10'1 | Bb4 | D4 | G4 | G3 |
| 10'2 | G4 | Eb4 | Bb3 | Eb3 |
| 10'3 (pause) | F4 | C4 | A3 | F3 |
| 10'4 | held | held | held | held |
| 11'1 | F4 | C4 | Bb3 | Bb2 |
| 11'2 | C5 | F4 | C4 | A2 |
| 11'3 | Bb4 | F4 | D4 | Bb2 |
| 11'4 | G4 | Eb4 | Eb4 | Eb3 |
| 12'1 | C5 | Eb4 | Eb3 | C3 |
| 12'2 | C5 | D4 | F#3 | D3 |
| 12'3 (pause) | Bb4 | D4 | G3 | G2 |
| 12'4 | held | held | held | held |
| 13'1 | G4 | Eb4 | D4 | Eb3 |
| 13'2 | A4 | Eb4 | C4 | C3 |
| 13'3 | Bb4 | F4 | D4 | Bb2 |
| 13'4 | C5 | F4 | C4 | A2 |
| 14'1 | D5 | F4 | Bb3 | Bb2 |
| 14'2 | Bb4 | G4 | D4 | G3 |
| 14'3 (pause) | C5 | A4 | A4 | F3 |
| 14'4 | held | held | held | held |
| 15'1 | D5 | Bb4 | F4 | Bb3 |
| 15'2 | C5 | F4 | F4 | A3 |
| 15'3 | Bb4 | F4 | F4 | Bb3 |
| 15'4 | C5 | G4 | C4 | Eb3 |
| 16'1 | Bb4 | F4 | D4 | F3 |
| 16'2 | A4 | F4 | C4 | F3 |
| 16'3 (pause) | Bb4 | F4 | D4 | D3 |
| 16'4 | held | held | held | held |
Your marking
There are 14 mistakes. You have marked 0.
The answers
Go through the mistakes one at a time, in score order. Each one is numbered in the score and its notes turn red.
The correct version
The same chorale with no mistakes, and its chords. It has a prepared suspension, cadential 6/4s and 7ths that are used correctly: compare them with the ones that were wrong.