The note “A” is the first letter of the musical alphabet and is the sixth note of the C Major scale. This is known as the submediant. It is also the first note in its relative minor scale and is identified as “LA” in solfeggio.
Additionally, “A” is used as the reference note for tuning. It is also the musical pitch relating to 440 oscillations per second of vibrations.
Beyond its pitch-related meanings, the “A” note also represents some musical terms or symbols, such as “A tempo,” which instructs musicians to return to the original tempo, or “a cappella,” indicating vocal music performed without instrumental accompaniment.
The frequencies of the audible pitches of the note “A” are notated below.
The Audible Notes of 'A'
