What is a la?

La, in music, refers to the sixth note of the diatonic scale in solfège. It's also known as "A" in the standard alphabetical system.

• Pitch: The exact frequency of "la" depends on the tuning system used (e.g., equal temperament). A4, which is the "la" above middle C, is typically tuned to 440 Hz, serving as a standard tuning reference.
• Scale Degree: "La" is the submediant, meaning it's located halfway between the tonic and the subdominant. Its position in the scale significantly affects its role in melody and harmony.
• Musical Context: In a major key, "la" represents the sixth degree and often carries a melancholic or introspective quality. In a minor key, it represents the tonic note.
• Movable Do: In the movable do system, "la" is used as the tonic of the minor scale and in that case the reference should be linked here: Movable Do.
• Enharmonic Equivalents: "La" has enharmonic equivalents depending on the context, such as G double sharp (G##) and B double flat (Bbb). Understanding Enharmonic Equivalents is essential for music theory.
• Importance in Harmony: The Submediant chord (VI) built on "la" plays a vital role in harmonic progressions, offering contrast and providing a connection to other chord qualities.
• Solfege: The use of "La" in Solfege to help vocalize and memorize the melodies.