columnar transposition cipher | COMPUTER CRYPTOGRAPHY | COLUMNAR CIPHER ENCRYPTION AND DECRYPTION

**TRANSPOSE** On a keyboard piano, "transpose" refers to the function that allows you to shift the entire musical key, or pitch level, of a piece of music, either higher or lower, without changing the fingering or the relative position of the notes. Here's a more detailed explanation: What it does: Transposing involves changing the starting point of a melody or chord to a different pitch level, while maintaining the same relationships between the notes. Why it's useful: Changing Keys: It allows