Written pitch vs. concert pitch
Two little phrases unlock all of transposition. Once you know the difference between the note on your page and the note in the air, the confusing parts of band suddenly make sense. Here's the whole idea in plain English.
If transposition has ever made your head spin, it's almost always because these two terms got tangled. Separate them cleanly and everything else falls into place.
Learn it by playing
The difference between written and concert pitch sticks fastest when you hear it. Our free arcade reads your real horn and handles the translation for you.
The two definitions
- Written pitch — the note printed on your part. It's what you read and finger. If your music says C, you finger a C.
- Concert pitch — the note that actually comes out, the real sound a piano or tuner would name. It's the "ground truth" everyone in the room shares.
On a piano, flute, or trombone, the two are identical: a written C sounds like a piano C. On a transposing instrument, they're different — and the gap between them is fixed and predictable.
Why they ever differ
Instruments come in families, and within a family they share fingerings. A clarinetist who learns one set of fingerings can play the B-flat, A, or bass clarinet without relearning. A sax player moves from alto to tenor to bari the same way. To make that possible, each instrument's music is transposed on the page so the same fingering always reads as the same written note.
The result: the written note no longer matches the concert sound. The instrument isn't out of tune — its part is simply written in its own "language," and the player translates to and from concert pitch as needed.
The common transpositions
Each instrument is named after the concert pitch it produces when the player reads a written C:
- C instruments (flute, oboe, trombone, tuba): written = concert. No shift.
- B-flat instruments (trumpet, clarinet, tenor sax): sound a whole step below written. Written C → concert B-flat.
- E-flat instruments (alto and bari sax): the alto sounds a major sixth below written. Written C → concert E-flat.
- F instruments (French horn): sound a perfect fifth below written. Written C → concert F.
How to convert between them
Pick a direction and apply the instrument's interval:
- Written → concert (what does it sound like?): move the written note down by the instrument's interval. A trumpet's written D sounds concert C.
- Concert → written (what do I play?): move the concert note up by the instrument's interval. A concert F on a B-flat horn becomes a written G.
Don't forget the key signature shifts too. A B-flat instrument's part gains two sharps (or loses two flats) relative to the concert score; an E-flat alto part gains three sharps. The easiest habit is to memorize one landmark — "written C sounds concert ___" — and count from there.
A worked example
The director calls a concert B-flat. Going concert → written:
- Flute (C): plays written B-flat — no change.
- Trumpet (B-flat, up a whole step): plays written C.
- Alto sax (E-flat, up a major sixth): plays written G.
- French horn (F, up a perfect fifth): plays written F.
Four written notes, one shared concert sound. That's the entire puzzle of transposition, solved with one idea repeated for each instrument.
The fun way to lock it in
You won't truly own this by memorizing a chart — you'll own it by playing and hearing the relationship over and over. Brass Blaster reads your real horn and handles the written-to-concert translation automatically, so you just play the right note to blast the swarm while your ear quietly learns the difference.
Brass Blaster
Play the correct note to blast the swarm. Brass and saxes supported, transposition handled automatically. Uses your mic.
Frequently asked questions
What is the difference between written pitch and concert pitch?
Written pitch is the note printed on a player's part — the note they read and finger. Concert pitch is the actual sounding note, the one a piano or tuner measures. On a transposing instrument, the two are different.
Why don't written pitch and concert pitch always match?
Transposing instruments are written so the same fingering always reads as the same note, which keeps fingerings consistent across a family. The trade-off is that the written note no longer equals the concert sound.
How do I convert written pitch to concert pitch?
Apply the instrument's interval. A B-flat instrument sounds a whole step below written, so move the written note down a whole step. An E-flat alto sax sounds a major sixth below written.
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