This question involves some basic concepts in music theory. In Western music, a sharp scale is a musical scale in which each note is one semitone higher than the previous note. In Chinese music, the pentatonic scale is a scale with only five notes, namely 1, 2, 3, 5, and 6.

The sharp scale 12456 is actually the scale of F natural major, and the pentatonic scale of F natural major should be 12345.

Therefore, the sharp scale 12456 and the pentatonic scale 12356 are not the same concept.