what chord is Buit from the frist note in a scale A l, B i, C v, D x

Answer 1

It looks like you're trying to decipher a chord based on a coding or substitution scheme you provided (A l, B i, C v, D x). From the first note in the scale (A), if we interpret "Buit" as a typo, I'm assuming you're asking what chord is built on the note B.

In standard music theory, if you're looking for the triad chord built on the note B in the key of A major (the A major scale consists of A, B, C#, D, E, F#, and G#), the chord built on B is a B minor chord, which consists of the notes B, D, and F#.

If you meant something else or if "Buit" refers to a specific terminology, please clarify!