This is a music theory video about Future's song "Temptation" produced by Tay Keith. He used the C# (sharp) minor scale which involves these 7 keys (C#, D#, E, F#, G#, A, and B). There are seven keys in a scale. There are a total of 4 sharps in this scale. You can merge this scale with a harmonic or melodic minor. This scale has a major variant with the C (aka phrygian mode). Many jazz greats like Bill Evans and Tholonious Monk used this scale. The mood is serious and emotional which fits Future's Wizrd theme.