Level 4 (like Grade 4) · Unit 18 of 24

Transposing

Moving music higher or lower – into another clef, another key, or for an instrument that reads differently.

By the end you will be able to:

• move a tune up or down an octave into another clef
• transpose a tune by an interval into a new key
• explain transposing instruments

Learn

By an octave

The simplest move keeps the same letter names an octave higher or lower. To move a treble clef tune down an octave into the bass clef, remember middle C: one ledger line below the treble stave, one above the bass stave.

By an interval

To move a tune up a major 2nd, move every note up a major 2nd – and change the key signature too. A tune in C major moved up a major 2nd is in D major (two sharps). The key signature takes care of the sharps and flats, so the letters simply move up one step.

Transposing instruments

Some instruments read notes that are different from the sounds they make. A clarinet or trumpet in B♭ sounds a major 2nd lower than written, so its music is written a major 2nd higher. An alto saxophone (in E♭) sounds a major 6th lower than written. A descant recorder sounds an octave higher than written.

Your turn

Watch and listen, then practise with new questions every time – reading questions, and writing tasks you answer on the stave. Take the check when you are ready: 80% passes the unit.

Level 4 is like Grade 4 music theory. These are Classfern’s own levels, not an exam board’s. Questions are made and marked by rules in your browser.