Part of our guide to transposing a song to any key.
If you have ever heard a band tune to a single note, or seen a part labeled "in C," you have run into concert pitch. It is the shared reference that lets a piano, a violin, and a trumpet play together in tune, even though some of those instruments read notes that do not match what they sound. Understanding concert pitch is the key to understanding why transposing instruments behave the way they do, and why a score can be written two different ways. Here is what concert pitch means, which instruments use it, and why others do not.
What concert pitch means
Concert pitch is the actual sounding pitch, the shared reference an ensemble tunes to. Standard tuning sets the A above middle C, written A4, to 440 Hz. That is the anchor the whole group agrees on, which is why an orchestra tunes to a single A before it plays. When someone calls for a concert C, they mean the real pitch that everyone hears, not whatever note happens to be on a given player's page. This is the same notion of "real pitch" that sits underneath what transposition is: you can only move a song to a new key once you agree on what the original pitches actually are.
Which instruments play at concert pitch
Concert-pitch instruments, also called non-transposing instruments, sound the note they read. The list covers most of what you would expect: the piano, the guitar, the strings (violin, viola, cello, and bass), the flute, the oboe, the trombone, and the human voice. When a pianist reads a C, a concert C sounds, with no gap between the page and the pitch. That is part of why the piano is such a useful reference instrument. What you see is what you hear, so it makes a reliable yardstick for tuning and for checking pitches against any other player in the room.
Why transposing instruments differ
Transposing instruments read a written note that sounds as a different pitch. The common ones are easy to remember once you see the pattern: the Bb clarinet, the Bb trumpet, and the Bb tenor sax sound a step (or more) below what they read, while the Eb alto sax and the F horn read in their own keys. So a written C on a Bb trumpet sounds a concert Bb. Why does this exist at all? In large part it lets a player switch between sizes of the same instrument family using the same fingerings, along with other historical reasons that shaped how these instruments were standardized. A deeper tour of the families lives in transposing instruments explained.
Concert-pitch scores, and getting one
"Concert pitch" also names a way of writing a score. A concert-pitch score, sometimes called a C score, notates every part at its sounding pitch rather than at each instrument's transposed reading pitch. That makes it easy for a conductor or arranger to see what is really happening across the ensemble, because every line is in the same world of pitch. Songscription helps here because it transcribes a recording into an editable score, which captures concert pitch directly from the audio. From there you can produce a transposed part for a transposing instrument, turning the sounding pitches into the reading pitches a clarinet or trumpet player needs. The full workflow is laid out in our guide to transposing a song to any key.
Capture concert pitch from any recording
Upload a song and get an editable score at sounding pitch, then transpose it into a part for a clarinet, trumpet, or any transposing instrument. The free tier is enough to transcribe your first song.
Frequently Asked Questions
What does concert pitch mean?
Concert pitch is the actual sounding pitch, the shared reference an ensemble tunes to. Standard tuning sets the A above middle C, written A4, to 440 Hz. When a musician plays a concert C, everyone in the room hears the same C, regardless of which instrument is sounding it. It is the common ground that lets different instruments play in tune together.
Which instruments play at concert pitch?
Concert-pitch, or non-transposing, instruments sound the note they read. These include the piano, the guitar, the strings (violin, viola, cello, and bass), the flute, the oboe, the trombone, and the human voice. When a pianist reads a C, a concert C sounds. There is no gap between the written note and the pitch you hear.
Why do some instruments not play at concert pitch?
Transposing instruments read a written note that sounds as a different pitch. A written C on a Bb trumpet sounds a concert Bb, and the Bb clarinet and Bb tenor sax behave the same way, while the Eb alto sax and the F horn read in their own keys. They exist partly so a player can switch between sizes of the same instrument family using the same fingerings, along with other historical reasons.
What does "concert A" or "concert B-flat" mean?
A phrase like concert A or concert Bb means the actual sounding pitch, as opposed to the note a transposing player reads. When a conductor asks for a concert Bb, every player produces the same sounding Bb even though a trumpet or clarinet player may be reading a different written note to get there. The word concert flags that you are talking about real pitch, not the page.
The clearest way to see concert pitch in action is to capture it from a song you know. Upload a recording with Songscription and get an editable score at sounding pitch, then transpose it for whatever instrument you play.
