Deep C is the C two octaves below Middle C, and is also named C2. It is two ledger lines below the bass clef and is the depth opposite of Soprano C or C6, two ledger notes above the treble clef. Few men are capable of such depth, although the thickest basses can reach B1 (R&B singer Barry White was able to drop down to F#1). It is essential the lowest note written in music. Just as music is seldom written higher than F6, neither is it written lower than C2. For the numerical computation software, see GNU Octave. ... Soprano C is the C two octaves above Middle C. It is named because it is considered the high note of the soprano (although many, especially the coloratura soprano go much higher). ... Soprano C is the C two octaves above Middle C. It is named because it is considered the high note of the soprano (although many, especially the coloratura soprano go much higher). ... Barry White Barry White (September 12, 1944 – July 4, 2003) was an American record producer and singer responsible for the creation of numerous hit soul and disco songs. ...