What is the lowest note of Albert Lim's standard range?
Baritone A baritone is a type of classical male singing voice whose vocal range lies between the bass and the tenor voice types. It is the most common male voice. Originally from the Greek βαρύτονος ("barýtonos") , meaning "deep (or heavy) sounding", music for this voice is typically written in the range from the second F below middle C to the F above middle C (i.e. F–F) in choral music, and from the second A below middle C to the A above middle C (A to A) in operatic music, but can be extended at either end. The baritone voice type is generally divided into the baryton-Martin baritone (light baritone), lyric baritone, "Kavalierbariton", Verdi baritone, dramatic baritone, "baryton-noble" baritone, and the bass-baritone.
Alpha scale The α (alpha) scale is a non-octave-repeating musical scale. In one version it splits the perfect fifth (3:2) into nine equal parts of approximately 78.0 cents. In another it splits the minor third into two equal parts, or four equal parts of approximately 78 cents each    . At 78 cents per step, this totals approximately 15.385 steps per octave. The scale step may be precisely derived from using 9:5    to approximate the interval ⁄ , which equals 6:5    .